Unfortunately Bread doesn't melt. It sublimes (skips straight from solid to gas) at a few hundred degrees Celsius. This 'Gaseous Bread' is what actually burns. Bread cannot be a liquid because it's structure is (largely) a polymer of glucose molecules forming Starch. In order to take on a liquid state the glucose molecules would have to detach themselves from each other and slide around. The temperature required for this to happen is so high that Glucose (which is not a very stable molecule) just breaks up, forming a gas (which arguably is not really gaseous bread but gaseous glucose).
tbf i knew about sublimation but that's a great explanation (which reminds me the bbc4 series on materials atm is really really good, done metals, still have plastics and ceramics to go )
thats made my day that has. Educational stuff
Btw - my toaster goes up to 7 - I think we can safely assume that that = *BURNING THE FUCKING HOUSE DOWN*
My son came in when the alarm started going off....'What's happened?'....'Errrrrrrr ....nothing! :-| '
simple, right? it has a sensor that detects *how brown* the toast is, and pops at the required brownness. 2 settings: white and brown bread
why doesn't it exist yet?
I was forcibly reminded today by my incredibly slowly toasting sourdough white that toast made from different bread varies massively in how fast it browns.
The thickness of the slice has a relevance as well - thin slice = further from the element.
Think the toaster at work is designed for toasting gigantic crumpets or waffles, if you put in a normal slice of bread it's so far from the heat it takes ages to toast.