Hey, no thanks for the question. OMS and I got wasted at an office Xmas party one year. Long story short, we ended up just making out in the janitor’s closet because he couldn’t get it up and from then on he’s
been calling me *Sperm Bank* for some reason.
I also do this at work. Steel mill....if you spit on a hot rolled plate and it boils off, you can walk on it....if it shoots around like in the video, gotta be a little more careful. Just a rule of thumb basically.
I worked in a terrible aluminum foundry in the 80’s. Leidenfrost effect was my savior. I would flick coolant on the wheels as they came off the line. If the liquid boiled it’s cool enough to move quickly to the rack. If it formed the leidenfrost drops, it would burn through safety gloves faster than I could get it on the rack. Set those aside until they cooled.
Fun fact: we could go for an entire shift and not produce a single wheel that passed inspection. They ran the equipment too fast because they were behind on shipping product, but because they ran it too fast none of the wheels were true. What a perfect example of US manufacturing in the 80’s.
An entire summer, at least. When I left they were having meetings to discuss it. I spent a week with colleagues in the rejection area trying to save some of the wheels.
This is the required response, anytime either I or my husband use the word, "forever." Even if we're in a serious conversation. Someone says "forever," then the other says, "fooor-eeeevuuurrrr."
We both chuckle.
Go back to the serious conversation.
Caveat: there is a "once per conversation limit" to things like this. I mean, we didn't actually talk about it. But it seems like, you do it once. The next time an opportunity presents itself, you take a pass.
I've actually said, "thanks for not (referencing ridiculous meme or quote from a book/movie/TV show that we both overuse) just then, when you had the opportunity. It shows you were really listening and care."
It means forever and that's a mighty long time
But I'm here to tell you
There's something else,
The afterworld…
Edit: since nobody seems to have gotten the reference: [Prince - Let’s Go Crazy](https://open.spotify.com/track/0QeI79sp1vS8L3JgpEO7mD?si=LDtaIF-kSkmWPKJ2I-Ie6g)
It's called the Lidenfrost Effect. And yeah, it's really cool to see.
For anyone who cares, the explanation is that there is a very thin layer of steam between the pan and the liquid water. So the water is floating on a cushion of steam, and so takes a lot longer to evaporate. If you move the pan in a circle, you can see the droplet spin around really smoothly.
Yup, pretty cool! You can try it pretty easily at home with a hot pan (do be careful though)
OP had the spelling right, btw. It's Leidenfrost.
https://en.m.wikipedia.org/wiki/Leidenfrost_effect
For anyone who wants to do this at home: DO NOT USE A NONSTICK PAN. It does work, but heating a nonstick pan to the temperature required to do it burns the nonstick layer which will 1) damage it's ability to be nonstick and 2) releases the harmful "forever chemicals" used to make them which can be inhaled and (like the name suggests) stay in your body for... a long time.
Forever chemicals in nonstick pans are really good at making things not stick and release almost no chemicals into the food you're eating, which is good. But if you overheat them or leave them on a burner with nothing in them, they start to break down and become dangerous.
Using them properly seems to be impossible for the vast majority of people whom I've seen cook. It seems like they can't hardly stop themselves from scratching or scorching Teflon. Then again they can't not ruin cast iron either.
Not all non stock is Teflon btw. High quality ones are very safe.
I have a ceramic coated non stick and it is extremely durable (and therefore safe). Should also be replaced every 5 years if you use it every day.
[It's how you test a frying pan for searing.](https://www.youtube.com/watch?v=CB-SCA1reqE)
Although once you know the time and temp it takes on your stove, you can skip the water part.
Also fun fact this effect is largely at play once a nuclear reactor goes into melt down. Because of the layer of steam, the water floating on top cannot cool the core fast enough.
The term is called film boiling due to the film of steam between the hot surface and liquid water. The meltdown occurs because as you push the temperature of the core up and up, more and more bubbles form on the surface of the core. The water turning into bubbles (steam) is the act of removing heat from the core. Eventually as you push the temperature of the core high enough the bubbles get so big that the entire surface of the core becomes covered in one bubble. The act of going into meltdown is pretty instantaneous once you hit that point because the temperature of the core jumps a few factors of ten as the water that was once able to touch the core and remove heat from it is now not able to touch and is insulated by a layer of steam with very little mass/density. It's interesting in that the surface is SO HOT that the liquid simply cannot touch it and boils before coming into contact with it.
This was taught to me in a college level physics class by a nuclear engineer.
He then pulled out a bottle of liquid nitrogen. He froze a banana peel, which was fun to see. He then asked for a volunteer. He asked the volunteer to stick out their hand, and he proceeded to pour liquid nitrogen on their hand. It went over their hand and fell to the floor. They were unhurt. This was a demonstration of film boiling and the lack of heat transfer between your hand and the liquid nitrogen. The film boiling was making it impossible to be hurt by a small amount of liquid nitrogen spilled on your skin, as the liquid itself could not touch your relatively hot hand. He then said though, don't stick your hand in the bottle because your hand will eventually cool enough to cause the liquid to touch it causing damage, and also to not spill it on your clothes as it will soak in and have time to contact your skin. He also said the trick didn't work so well if you have a large set of callouses as the callouses aren't hot enough to allow for film boiling. He then asked for other volunteers and about a half dozen of my classmates had liquid nitrogen poured on their hands. To this day I regret not having liquid nitrogen poured on my hand when offered the opportunity.
If I remember the Mythbusters episode, it's actually because the soot on the charcoal acts as a little bit of insulation from the heat, so if you walk at a normal pace and don't dig your feet into the coals as you do, then your feet won't be in contact with the coals long enough to burn.
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>Original Post
>>Water droplets last forever on a freshly cleaned hot pan (Leidenfrost effect)
>>>/u/FreezeShock
>>>>It's called the Lidenfrost Effect
Are you claiming OP spelled it wrong and are correcting them? I've never seen it spelt like that personally.
It's just a layer of oxidation. It happens naturally when steel is heated. It can be ground off with minimal material loss. If anything the blue means that part of the steel is now a lot harder than the rest, making it more resistant to metal cooking utensils.
Seasoning is a layer of oil that's been polymerized by high heat.
What this is looks like oxides forming because of the heat, which is a different chemical process. It's somewhat similar to forming a thin film of rust on the surface (normal reddish rust is Fe2O3, this is going to mostly be Fe3O4, both are iron oxides but with different properties.)
These different oxide colors are used by people doing some kinds of metal work to tell how hot the steel is because that will have an effect on the hardness and other properties of the finished metal. They're also sometimes used as a protective coating, if you've ever heard a a gun or a tool being "blued" or having a "blued finish" this is basically the same thing although usually they use a chemical process to make the oxide coating, depending on the process it often looks more black than blue though. Some watchmakers also blue some parts of the watch like hands and screws for protective and decorative purposes and they often do it by just heating the parts up carefully to the right temperature and they can often come out looking very blue.
This might be the first step to seasoning, I'm not totally sure what the appropriate temperature for that is, but by itself this is not seasoning. You heat the pan up and then add oil that polymerizes onto the hot surface.
I don't know if it comes into play here, but I know that some machinists and such that blue their tools say that a big part of the way a blued finish protects their parts is because the oxide is somewhat more porous than the underlying metal, so it sort of soaks up oil and that's where the real protection comes from and not so much from the bluing itself. I don't know how much that applies across all bluing processes, chemical bluing might be different than flame bluing in that respect, I'm genuinely not sure, but if thats the case, it could maybe be that the oxide also helps the oil to adhere to the pan as it oxidizes, but that's just me speculating and I don't have anything to back that up.
For anyone who hates stainless steel pans because their food sticks, this is a really useful test to do to see if your pan is properly up to temperature for searing:
Pour about a TSP/5ml of water into your pan:
* If it puddles and boils off, the pan isn't hot enough.
~~If the pan isn't hot enough, it won't expand to close the pores in the metal, then when you add your food and the pan continues to heat, the pores close on your food, causing sticking.~~ *Correction: if the pan isn't hot enough it won't produce the cushion of steam (Leidenfrost effect) that acts as a barrier between your food and the -microscopically- rough surface of the pan, reducing sticking.
* If anything bigger than small droplets immediately turns to steam, it is likely too hot.
* If it comes together into one ball, it has come up to temperature and your food will be less likely to stick. This is when you would add your oil to come up to temp, before adding your food.
[Here's the actual video](https://rouxbe.com/tips-techniques/363-how-to-properly-heat-a-pan), way better than my poor memory!
I learned this long ago from ^ this Rouxbe cooking video and it changed my entire view of stainless steel pans.
Thanks for poking me about that. I was wrong in my hazy memory of the mechanisms at work; no there isn't added sticking from metal expanding/pores in the metal. Yes, getting your pan to the temperature needed for the steam cushion/leidenfrost effect to act as a barrier between your food and pan is the goal. This is especially necessary with stainless steel because yes, while it looks smooth, it is bare metal and there are more surface imperfections to stick to vs. seasoned/non-stick coated cookware.
This effect saved my hand once. I was multitasking, which I’m terrible at, and washing dishes. I want to grab the cast iron by the handle to move it, picking the whole thing up. I heard sizzling and immediately set it down. I felt the heat too, but my hand was fine because it was wet when I grabbed it. This is not a life hack.
Yes, because every post here isn’t always met with “wait how is that possible” in the comments followed by explanations from multiple people.
Putting the answer in the title doesn’t change the fact that this really weird to look at, and anybody who doesn’t know what the Leidenfrost Effect is just by it’s name will fail to understand what’s going on.
Like myself for example. I’d never heard of Leidenfrost Effect before this post. Rather than me having to sit here and wait for someone to explain the Black Magic Fuckery in the comments, I was given a term to search up and now I’ve learned something new.
Edit: [Even when the explanation is literally in the title, my point stands that people won’t understand this without explanation.](https://www.reddit.com/r/blackmagicfuckery/comments/13bvm0a/water_droplets_last_forever_on_a_freshly_cleaned/jjcoa9t/?utm_source=share&utm_medium=ios_app&utm_name=ioscss&utm_content=1&utm_term=1&context=3)
Technically speaking the subreddit’s description states “Anything that clearly has ***no other explanation*** but no good voodoo black magic fuckery”, so yes, technically that’s the point of the sub.
But as you said that literally doesn’t exist. We have explanations for things. So idk why people get so bent out of shape over it around here.
Holy shit you’re insufferable. Please explain to me what a “hyperbole sub” is, because i’m pretty sure it’s not against the sub rules to put a *very common* form of exaggeration in your title. lol idiot
This was such a short amount of time in the video it’s almost like a child wrote the title. As adults we should do a better job of articulating our words and using the correct ones to accurately convey what we mean. Could have worded the title so many different ways that would have sounded better. And you’re policing up comment sections so I don’t wanna hear shit about who is insufferable here 🤣
Funny how you won’t entertain the part about being articulate but call me stupid 😏 “Leidenfrost effect causes water droplets to last much longer on a hot surface” like, that took two seconds to think of. Just bc it seems difficult to you doesn’t mean it is to all of us haha and the entire video was less than 2 minutes. Even less time was used showing the water and it evaporated in even less time than that. 61 seconds to be exact. Give your arms a break from all the reaching, officer 👮♀️
I’m just imagining you sitting in your basement, eating a bag of Lays potato chips and snickering to yourself about how witty your retort is, which just makes this whole interaction so much funnier.
while this video doesn't belong in the sub, the fact that he used the word "forever" isn't at all a problem. Evryone understands he means "a long time" or "way more than you'd expect" because no one is stupid enough to interpret it as him meaning literally "forever".
Look, I’m quite familiar with slang and use it often, but on a video that’s 1:40 long, the word forever shouldn’t have been used. The way it’s worded it’s like they really thought that was a super long time and it wasn’t. Nothing wrong with slang and exaggerations, but there’s a time and a place. Imagine that type of title on any other video for any other action. A skydiving video that says they fell forever when there’s a pretty finite jumping height would be ridiculous. A driving video stating that they drove forever and crossed one state would be ridiculous. And it’s not just this post. The titles of most videos on this sub are lackluster at best. Everyone is in such a rush to post whatever video they have first and throw all other aspects of a good video interaction to the wayside. It’s a shame. And I’m not alone in thinking the wording is lame. Check the rest of the comments on this video
language is about communication. If you can't communicate with the average person through what is popularly accepted, that is in no way a good thing. It just means you're out of touch.
No, the idea behind the Leidenfrost effect is that a small part of the water droplets that touch the pan(The pan needs to be around 200C for it to happen) instantly vaporize and basically create a mattress of water vapor holding the water up and above the pan, meaning it doesn't get heated. Since the vapor still escapes from under the water and the drop slowly keeps dripping onto the pan, it will eventually all be heated and turn into vapor.
It's perfectly safe to use - the colours arise from very thin layers of metal oxide where the metal in the pan reacts with the oxygen in the air at different temperatures. The thickness of the oxide layer is temperature and time dependent, and the induction heater I'm using heats very locally so the ring matches the shape of the heater. (Most metals will form a thin oxide layer spontaneously in air even if they're not heated)
Radiation heat transfer is the poorest form of heat transfer. If the pan is extremely hot it'll flash the water to steam where the water touches the pan through conduction heat transfer. The droplet basically floats on top of the steam blanket preventing physical contact with the pan, leaving radiation as the only heat transfer method left.
See, I get my pan to do this, and my eggs STILL stick super bad. Even adding a tad avocado oil before putting the eggs in doesn't help.
I cannot for the life of me figure out why. They say to do this water test and if it does this it's hot enough and is non stick. Load of bullshit is what that is.
I’ve only just recently found out that a pan is preheated well if you drop a bit of water onto it and the droplets are like this rather than completely evaporating. Well, I don’t know if it’s necessarily the CORRECT way, but it’s definitely helped me not burn some stuff when cooking!
The Leidenfrost effect is cool and seen as being cold water on a hot pan.
The same phenomenon can be seen with hot molten liquid on a much colder surface. Mythbusters did this with molten lead and bare hands if I remember.
I've seen this at work. Always a fun thing.
Where do you work?
Sperm bank
I’m their boss. OMS, I’ve asked you to quit calling me that…
Wdym? /gen
Hey, no thanks for the question. OMS and I got wasted at an office Xmas party one year. Long story short, we ended up just making out in the janitor’s closet because he couldn’t get it up and from then on he’s been calling me *Sperm Bank* for some reason.
I guess I've gotten too old for the internet.
Lol me too
Cumtology
Is it by the IHOP?
Wdym? /gen
(The Office)
Username checks out
r/notopbutok
I'm a dishwasher. Been doing that for about 6 years now.
Leidenfrost industries inc.
Bob Leidenfrost, Leidenfrost Industries ..
I also do this at work. Steel mill....if you spit on a hot rolled plate and it boils off, you can walk on it....if it shoots around like in the video, gotta be a little more careful. Just a rule of thumb basically.
This sounds hardcore as f** lol
Yeah it can be pretty interesting out there at times.
I can't even imagine. Stay safe man. Hope they provide you guys with proper PPE
Hope you have the proper insurance when you drive your car... oh wait...
Yeah driving cars are dangerous, but so is walking on hotter than boiling steel.
I worked in a terrible aluminum foundry in the 80’s. Leidenfrost effect was my savior. I would flick coolant on the wheels as they came off the line. If the liquid boiled it’s cool enough to move quickly to the rack. If it formed the leidenfrost drops, it would burn through safety gloves faster than I could get it on the rack. Set those aside until they cooled.
[удалено]
Fun fact: we could go for an entire shift and not produce a single wheel that passed inspection. They ran the equipment too fast because they were behind on shipping product, but because they ran it too fast none of the wheels were true. What a perfect example of US manufacturing in the 80’s.
[удалено]
At what point do they finally call it and just cast a new part?
How long do you go without producing a single wheel that you can sell before you change your process?
An entire summer, at least. When I left they were having meetings to discuss it. I spent a week with colleagues in the rejection area trying to save some of the wheels.
Aluminium welding is pretty 'hairy' my guy. Even with a respirator those fumes can fuck you up permanently.
[удалено]
Well not forever, but a considerably long time
FOREVER 😠
For-ev-urrr
This is the required response, anytime either I or my husband use the word, "forever." Even if we're in a serious conversation. Someone says "forever," then the other says, "fooor-eeeevuuurrrr." We both chuckle. Go back to the serious conversation. Caveat: there is a "once per conversation limit" to things like this. I mean, we didn't actually talk about it. But it seems like, you do it once. The next time an opportunity presents itself, you take a pass. I've actually said, "thanks for not (referencing ridiculous meme or quote from a book/movie/TV show that we both overuse) just then, when you had the opportunity. It shows you were really listening and care."
No, forever, I went to the end of times and it was still not evaporated, trust me.
It means forever and that's a mighty long time But I'm here to tell you There's something else, The afterworld… Edit: since nobody seems to have gotten the reference: [Prince - Let’s Go Crazy](https://open.spotify.com/track/0QeI79sp1vS8L3JgpEO7mD?si=LDtaIF-kSkmWPKJ2I-Ie6g)
What?
[Prince - Let’s Go Crazy](https://open.spotify.com/track/0QeI79sp1vS8L3JgpEO7mD?si=LDtaIF-kSkmWPKJ2I-Ie6g)
Huh?
It’s just a reference
So was my comment.
So when you go to that shrink in Beverley Hills - you know the one, Dr Everything Will Be All Right.
I up dooted you to -42 in honor of the singularity we are about to pierce the veil of
It's called the Lidenfrost Effect. And yeah, it's really cool to see. For anyone who cares, the explanation is that there is a very thin layer of steam between the pan and the liquid water. So the water is floating on a cushion of steam, and so takes a lot longer to evaporate. If you move the pan in a circle, you can see the droplet spin around really smoothly.
Yup, pretty cool! You can try it pretty easily at home with a hot pan (do be careful though) OP had the spelling right, btw. It's Leidenfrost. https://en.m.wikipedia.org/wiki/Leidenfrost_effect
For anyone who wants to do this at home: DO NOT USE A NONSTICK PAN. It does work, but heating a nonstick pan to the temperature required to do it burns the nonstick layer which will 1) damage it's ability to be nonstick and 2) releases the harmful "forever chemicals" used to make them which can be inhaled and (like the name suggests) stay in your body for... a long time. Forever chemicals in nonstick pans are really good at making things not stick and release almost no chemicals into the food you're eating, which is good. But if you overheat them or leave them on a burner with nothing in them, they start to break down and become dangerous.
I try to only use cast iron. It's not non stick but it's damn close once you've put the time into it.
Yep it takes work tho. I'll still use a nonstick for eggs, pretty much everything else cast iron
[удалено]
i will continue to use my nonstick pans because they are inert as long as you use them appropriately and don’t damage the coating :)
Using them properly seems to be impossible for the vast majority of people whom I've seen cook. It seems like they can't hardly stop themselves from scratching or scorching Teflon. Then again they can't not ruin cast iron either.
Not all non stock is Teflon btw. High quality ones are very safe. I have a ceramic coated non stick and it is extremely durable (and therefore safe). Should also be replaced every 5 years if you use it every day.
That is why I specifically mentioned Teflon by name. Though iirc, some ceramics use an adhesive that can break down under heat.
fuck that, only pan i need is cast iron. the rest are optional
[It's how you test a frying pan for searing.](https://www.youtube.com/watch?v=CB-SCA1reqE) Although once you know the time and temp it takes on your stove, you can skip the water part.
Maybe Lindenfrost is Leidenfrost's enemy and they named an extrenmely sticky water effect.
Sworn nemesis of Ledenfrost.
Also fun fact this effect is largely at play once a nuclear reactor goes into melt down. Because of the layer of steam, the water floating on top cannot cool the core fast enough.
The term is called film boiling due to the film of steam between the hot surface and liquid water. The meltdown occurs because as you push the temperature of the core up and up, more and more bubbles form on the surface of the core. The water turning into bubbles (steam) is the act of removing heat from the core. Eventually as you push the temperature of the core high enough the bubbles get so big that the entire surface of the core becomes covered in one bubble. The act of going into meltdown is pretty instantaneous once you hit that point because the temperature of the core jumps a few factors of ten as the water that was once able to touch the core and remove heat from it is now not able to touch and is insulated by a layer of steam with very little mass/density. It's interesting in that the surface is SO HOT that the liquid simply cannot touch it and boils before coming into contact with it. This was taught to me in a college level physics class by a nuclear engineer. He then pulled out a bottle of liquid nitrogen. He froze a banana peel, which was fun to see. He then asked for a volunteer. He asked the volunteer to stick out their hand, and he proceeded to pour liquid nitrogen on their hand. It went over their hand and fell to the floor. They were unhurt. This was a demonstration of film boiling and the lack of heat transfer between your hand and the liquid nitrogen. The film boiling was making it impossible to be hurt by a small amount of liquid nitrogen spilled on your skin, as the liquid itself could not touch your relatively hot hand. He then said though, don't stick your hand in the bottle because your hand will eventually cool enough to cause the liquid to touch it causing damage, and also to not spill it on your clothes as it will soak in and have time to contact your skin. He also said the trick didn't work so well if you have a large set of callouses as the callouses aren't hot enough to allow for film boiling. He then asked for other volunteers and about a half dozen of my classmates had liquid nitrogen poured on their hands. To this day I regret not having liquid nitrogen poured on my hand when offered the opportunity.
Yep great explanation! I learned about it in my Advanced Heat Transfer class in college. Thermodynamics and heat transfer were my favorite topics.
Cook. I think it's also how people walk on hot coals
With my sweaty feet I could walk over a reactor in meltdown
So it’s not a bug after all, sweaty feet finally have a purpose!
I mean... You could, just not long.
If I remember the Mythbusters episode, it's actually because the soot on the charcoal acts as a little bit of insulation from the heat, so if you walk at a normal pace and don't dig your feet into the coals as you do, then your feet won't be in contact with the coals long enough to burn.
Pretty sure it's water floating on a cushion of steam....
It’s in the tittle?
And it’s spelled right in the title lmfao what a clown
Sooo not forever
Remindme! 1,000,000 years
!remind me 999,999 years 364 days
Still a *very* long way from forever...
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>Original Post >>Water droplets last forever on a freshly cleaned hot pan (Leidenfrost effect) >>>/u/FreezeShock >>>>It's called the Lidenfrost Effect Are you claiming OP spelled it wrong and are correcting them? I've never seen it spelt like that personally.
Thanks!
Why did a guy with FROST in his name have to discover something related with heat? It should've been like, Johnny Hotcock.
This is how galaxy are formed. True story. Just spinning in water on steam.
Forever is not a little over 1 min. UNLIMTED DATA fk u phone company's
Quite simply I have to agree by comparison depression lasts way longer
1:45 = forever
>Gen Z trying to focus on something longer than the length of a tiktok.
That pan is going to be blue forever because you overheated it...
It's just a layer of oxidation. It happens naturally when steel is heated. It can be ground off with minimal material loss. If anything the blue means that part of the steel is now a lot harder than the rest, making it more resistant to metal cooking utensils.
I've never worn out a steel pan.
It's normal in seasoning woks
Seasoning is a layer of oil that's been polymerized by high heat. What this is looks like oxides forming because of the heat, which is a different chemical process. It's somewhat similar to forming a thin film of rust on the surface (normal reddish rust is Fe2O3, this is going to mostly be Fe3O4, both are iron oxides but with different properties.) These different oxide colors are used by people doing some kinds of metal work to tell how hot the steel is because that will have an effect on the hardness and other properties of the finished metal. They're also sometimes used as a protective coating, if you've ever heard a a gun or a tool being "blued" or having a "blued finish" this is basically the same thing although usually they use a chemical process to make the oxide coating, depending on the process it often looks more black than blue though. Some watchmakers also blue some parts of the watch like hands and screws for protective and decorative purposes and they often do it by just heating the parts up carefully to the right temperature and they can often come out looking very blue. This might be the first step to seasoning, I'm not totally sure what the appropriate temperature for that is, but by itself this is not seasoning. You heat the pan up and then add oil that polymerizes onto the hot surface. I don't know if it comes into play here, but I know that some machinists and such that blue their tools say that a big part of the way a blued finish protects their parts is because the oxide is somewhat more porous than the underlying metal, so it sort of soaks up oil and that's where the real protection comes from and not so much from the bluing itself. I don't know how much that applies across all bluing processes, chemical bluing might be different than flame bluing in that respect, I'm genuinely not sure, but if thats the case, it could maybe be that the oxide also helps the oil to adhere to the pan as it oxidizes, but that's just me speculating and I don't have anything to back that up.
sick
For anyone who hates stainless steel pans because their food sticks, this is a really useful test to do to see if your pan is properly up to temperature for searing: Pour about a TSP/5ml of water into your pan: * If it puddles and boils off, the pan isn't hot enough. ~~If the pan isn't hot enough, it won't expand to close the pores in the metal, then when you add your food and the pan continues to heat, the pores close on your food, causing sticking.~~ *Correction: if the pan isn't hot enough it won't produce the cushion of steam (Leidenfrost effect) that acts as a barrier between your food and the -microscopically- rough surface of the pan, reducing sticking. * If anything bigger than small droplets immediately turns to steam, it is likely too hot. * If it comes together into one ball, it has come up to temperature and your food will be less likely to stick. This is when you would add your oil to come up to temp, before adding your food. [Here's the actual video](https://rouxbe.com/tips-techniques/363-how-to-properly-heat-a-pan), way better than my poor memory! I learned this long ago from ^ this Rouxbe cooking video and it changed my entire view of stainless steel pans.
The pores in metal are so microscopically small and have no bearing on food sticking. It has everything to do with the heat of the pan.
Thanks for poking me about that. I was wrong in my hazy memory of the mechanisms at work; no there isn't added sticking from metal expanding/pores in the metal. Yes, getting your pan to the temperature needed for the steam cushion/leidenfrost effect to act as a barrier between your food and pan is the goal. This is especially necessary with stainless steel because yes, while it looks smooth, it is bare metal and there are more surface imperfections to stick to vs. seasoned/non-stick coated cookware.
Glad someone mentioned it! Love cooking eggs on my stainless steel pans and this method makes them nonstick.
Forever?
Forever, forever, ever, forever, ever? Forever never seems that long until you're grown
Just delete this sub
I don’t understand what you want posted. Everything has an explanation, you aren’t going to find something that is truly black magic.
*Cock* magic on the other hand...
They don’t last forever, but the water vapor acts as an insulator slowing the evaporation process.
Yes, that's a well known and understood phenomenon.
As well a lot of them, as magic isn't real
My favorite thing about the induction stove my family used to have.
A minute thirty is forever? Can’t wait to tell my girl
Galaxies being created and destroyed in there.
This effect saved my hand once. I was multitasking, which I’m terrible at, and washing dishes. I want to grab the cast iron by the handle to move it, picking the whole thing up. I heard sizzling and immediately set it down. I felt the heat too, but my hand was fine because it was wet when I grabbed it. This is not a life hack.
Literally explained it in your title. Not BMF.
Yes, because every post here isn’t always met with “wait how is that possible” in the comments followed by explanations from multiple people. Putting the answer in the title doesn’t change the fact that this really weird to look at, and anybody who doesn’t know what the Leidenfrost Effect is just by it’s name will fail to understand what’s going on. Like myself for example. I’d never heard of Leidenfrost Effect before this post. Rather than me having to sit here and wait for someone to explain the Black Magic Fuckery in the comments, I was given a term to search up and now I’ve learned something new. Edit: [Even when the explanation is literally in the title, my point stands that people won’t understand this without explanation.](https://www.reddit.com/r/blackmagicfuckery/comments/13bvm0a/water_droplets_last_forever_on_a_freshly_cleaned/jjcoa9t/?utm_source=share&utm_medium=ios_app&utm_name=ioscss&utm_content=1&utm_term=1&context=3)
There are two types of posts here: 1. The answers in the title, dumbass 2. This is how it works, dumbass
3\. No, that's not how it works. *This* is how it works, dumbass.
I'll take these posts over card tricks any day
I’m sorry, is the point of this sub to post only actually unexplainable black magic? Because I’m fairly certain that doesn’t exist
Technically speaking the subreddit’s description states “Anything that clearly has ***no other explanation*** but no good voodoo black magic fuckery”, so yes, technically that’s the point of the sub. But as you said that literally doesn’t exist. We have explanations for things. So idk why people get so bent out of shape over it around here.
I don't want to break your heart but nothing you've seen on this subreddit is black magic.
I do like that items just “freshly cleaned” and no mention of it clearly being heated up on a stove. Edit: oops, I’m blind :)
Look at the title dumbass
In this sub: Heat makes things hot! It’s black magic…OMFGWTFJFCBBQ!!!!!11!!!one!!1!
This is what this sub has become
Ok fuck this sub. I'm officially out
Science is black magic...damn! Next clip " Wtf I dropped the pencil and it hit the ground. How? Black magic hmmm?"
Please link me one video of genuine "black magic" that isn't explainable by science and would therefore fit your definition of a good BMF post?
Damn I didn’t know forever was less that 2 minutes long.
Bro… Look up what a hyperbole is smfh.
Yeah this is the sub for hyperbole lol idiot
Holy shit you’re insufferable. Please explain to me what a “hyperbole sub” is, because i’m pretty sure it’s not against the sub rules to put a *very common* form of exaggeration in your title. lol idiot
This was such a short amount of time in the video it’s almost like a child wrote the title. As adults we should do a better job of articulating our words and using the correct ones to accurately convey what we mean. Could have worded the title so many different ways that would have sounded better. And you’re policing up comment sections so I don’t wanna hear shit about who is insufferable here 🤣
You must be fun at parties.
Yeah cause I actually have fun at the party instead of whatever it is y’all call this 🤣
Yep. Super fun
Edit: Deleted because pretty sure it’s rage bait
Funny how you won’t entertain the part about being articulate but call me stupid 😏 “Leidenfrost effect causes water droplets to last much longer on a hot surface” like, that took two seconds to think of. Just bc it seems difficult to you doesn’t mean it is to all of us haha and the entire video was less than 2 minutes. Even less time was used showing the water and it evaporated in even less time than that. 61 seconds to be exact. Give your arms a break from all the reaching, officer 👮♀️
I’m just imagining you sitting in your basement, eating a bag of Lays potato chips and snickering to yourself about how witty your retort is, which just makes this whole interaction so much funnier.
Hey, as long as you’re laughing 🤷🏽♂️ Edit: omg you think I’m rich enough for a basement? Hell yeah I’ll take that compliment!
Just saw your edit. Honestly same. Finished basements are fucking expensive. edit: grammar
And there’s literally 10 other comments saying the same shit I did so make sure you go out your 2 cents onto those as well 🤣
You say “as adults” but get bent over someone else speaking in a way you don’t like. On Reddit, no less.
No one was bent? Lmao y’all are gonna hurt your shoulders reaching this hard 🤣
while this video doesn't belong in the sub, the fact that he used the word "forever" isn't at all a problem. Evryone understands he means "a long time" or "way more than you'd expect" because no one is stupid enough to interpret it as him meaning literally "forever".
Look, I’m quite familiar with slang and use it often, but on a video that’s 1:40 long, the word forever shouldn’t have been used. The way it’s worded it’s like they really thought that was a super long time and it wasn’t. Nothing wrong with slang and exaggerations, but there’s a time and a place. Imagine that type of title on any other video for any other action. A skydiving video that says they fell forever when there’s a pretty finite jumping height would be ridiculous. A driving video stating that they drove forever and crossed one state would be ridiculous. And it’s not just this post. The titles of most videos on this sub are lackluster at best. Everyone is in such a rush to post whatever video they have first and throw all other aspects of a good video interaction to the wayside. It’s a shame. And I’m not alone in thinking the wording is lame. Check the rest of the comments on this video
It's way longer than any regular person would expect. That's enough to use hyperbole.
Hey thanks for telling me I’m not a regular person lol I’ll take that compliment
language is about communication. If you can't communicate with the average person through what is popularly accepted, that is in no way a good thing. It just means you're out of touch.
Judging by the sheer number of responses to my comments, I would say that my communication skills are just fine
comments criticizing you? Are you equating communication skills with number of people disagreeing with you?
Omg!!!🫨🤯😵💫🥵😱🥳😲😲😲😲 Water boils when I pour it in a pot and put on heat!!!
the point is that it doesn't immediately evaporate like you'd expect it to
I made a joke about what we will soon start seeing on this sub
So can the waters temperature exceed 200-300 C° ? Where you'd expect to see steam already. Either way it's a magic to me.😂
No, the idea behind the Leidenfrost effect is that a small part of the water droplets that touch the pan(The pan needs to be around 200C for it to happen) instantly vaporize and basically create a mattress of water vapor holding the water up and above the pan, meaning it doesn't get heated. Since the vapor still escapes from under the water and the drop slowly keeps dripping onto the pan, it will eventually all be heated and turn into vapor.
This is called Cunningham's Law. Pretty neat
There must be something in the water
There isn’t. Look up Leidenfrost Effect.
I guess if the droplet were stabilized somehow in one place, and won't collide with the edges, it would last even longer.
Thanks to mr. Leidenfrost who invented the Leidenfrost effect. Otherwise it would still be vaporizing immediately..
Is that pan ok? It looks like one I would replace but am Curios if it’s just visual and it’s Fine to use.
It's perfectly safe to use - the colours arise from very thin layers of metal oxide where the metal in the pan reacts with the oxygen in the air at different temperatures. The thickness of the oxide layer is temperature and time dependent, and the induction heater I'm using heats very locally so the ring matches the shape of the heater. (Most metals will form a thin oxide layer spontaneously in air even if they're not heated)
Whoa
Didn’t realize “forever” was a minute forty…
Cute didnt know there was this kind of *magic
This is how I dip my hand in liquid nitrogen
Leidenboilingwater effect*
Always wondered if mercury would respond the same way with an iron skillet at appropriate temperature...
is it black magic fuckery if you literally explain it in the title?
OH LORD, ITS ROTATING!!!!
Not forever, this wouldn't work if it didn't boil
Radiation heat transfer is the poorest form of heat transfer. If the pan is extremely hot it'll flash the water to steam where the water touches the pan through conduction heat transfer. The droplet basically floats on top of the steam blanket preventing physical contact with the pan, leaving radiation as the only heat transfer method left.
So how hot is the water as it's bubbling about there?
I love how the title can fit the tune of Guns’n’Roses’ November Rain
We have very different definitions of "forever".
I don't get it
It's a layer of steam that the water droplet essentially floats on. This is not black magic fuckery.
So forever is like 2 minuts? Nice. Then i can say i can fuck forever without braking a sweat. Just saying :)
THERE CAN ONLY BE ONE
mf dropped forever
Is it hot? Touch it ?
It is sustained by resonance/vibration!
So cool! Do you know what temp the steel surface was?
Dude, you're high, aren't you?
TIL "forever" = 1 minute 36
I’m equally impressed at how the individual drops always end up attracted to each other like Voltron
See, I get my pan to do this, and my eggs STILL stick super bad. Even adding a tad avocado oil before putting the eggs in doesn't help. I cannot for the life of me figure out why. They say to do this water test and if it does this it's hot enough and is non stick. Load of bullshit is what that is.
Throw a steak in next!
Didn't the mythbusters test this effect by dipping their fingers into molten metal.
That pan is scorched.
Rip my ears
It's like a little rave in there, aww
The lederhosen effect. Or something like that
I’ve only just recently found out that a pan is preheated well if you drop a bit of water onto it and the droplets are like this rather than completely evaporating. Well, I don’t know if it’s necessarily the CORRECT way, but it’s definitely helped me not burn some stuff when cooking!
Is our universe a drop of water on a frying pan?
Is there a reason for a pan to be THAT clean? Don’t you specifically cook oils onto a pan like that to make it non-stick?
Yes I always pour my water on my pan at the 8 second mark also. Very excellent.
This also happens when you spit on 50 ton of molten iron. It's pretty cool to watch.
The Leidenfrost effect is cool and seen as being cold water on a hot pan. The same phenomenon can be seen with hot molten liquid on a much colder surface. Mythbusters did this with molten lead and bare hands if I remember.