Okay so this question is gonna be weird but I swear this is just theoretical for a story I'm writing.?

My friend is a funeral director who prepared bodies for burial and also for cremation. The cremation process usually doesn't 'melt' anything since the high heat dries out the skin and muscle tissue fast, but severely obese people have so much fat that yes, they can have the fat melt for a short period of time. The bodies are in the high heat -- 1800 degrees F --- for one to three hours. Large bodies take the longer time. However the melting would be behind the furnace doors and not seen.

Here's a link of the process -- http://www.cremationresource.org/cremation/how-is-...

By googling 'does human fat melt in a fire' I got this interesting wiki article -- https://en.wikipedia.org/wiki/Wick_effect

Obviously the body is dead at the point where this happens.

I've talked to paramedics and asked them what was the worst that they've seen -- one said a hatchet murder, another said he picked up a burn victim still alive and the skin broke off in his hands as they lifted him onto a gurney. In a fire the skin crisps and dries out, flaking off. You're not looking at anything 'melting' there, it burns off as a dry crisp.

You can DISSOLVE skin with acid though. That might be what you're looking for.

Human flesh is basically fats and fluids, the same as the pork chop or hamburger on the grill. The fats would melt into grease. I suppose the higher the heat, the faster the charring, but the science of cooking meat and of cremation should be somewhere on the internet.

If you are asking what can melt a body, then, as Ealine M says, acid will do it. You need a very large acid proof container (not a domestic bath) and you will get a sludge which modern methods can still identify as human. Also, as one early practioner discovered, some bits - like gall-stones - will resist the acid. And you will have that huge container which will also have to be disposed of. On the whole, not recommended.

I used to have a roommate who was an obese liberal. If you went into the bathroom after he had been there your eyes, your skin, your lungs, everything would melt. This pig was really disgusting.

I have pulled multiple bodies out of fire scenes, home and vehicle. I have never seen "melted" skin. I have heard of it, but apparently if it exists it takes a very specific set of circumstances to make it happen.

probably but i think it does more than melting

No, it will boil, roast, and burn.

All those temps are less than melting.

No, just just from heat. The melting point of carbon is like 3500°C. It chars just like any animal skin. If you add a chemical or oil or something you can get a skin melting effect.

human skin melts. yes it does if it gets hot enough, at fires you can find people with their skin melted off and when you touch it it falls off. it depends on what your are talking about too because skin can melt in boiling water which is 212 degrees F and in a fire it is different very tough to tell.

During 9/11 the people that were blasted by the hot heat, had their skin melted off.