convection
Why are thermoplastics not used for making saucepan handles give scientific reason?
Because thermoplastic materials melt when they are heated !
A hot saucepan is placed on a cold bench Heat will flow from the saucepan to the bench until?
study island the saucepan and bench are at the same temperature.
What are the advantages and disadvantages using a lead saucepan to cook?
I don't know about the advantages, but lead will kill you if taking large amount.
We generally see a smooth, shiny finish left on cookware so that food will be less likely to stick and so that it can be cleaned more easily. Certainly we encounter a lot of coatings on pans (like Teflon) to reduce food sticking, and some of these coatings are not smooth at all. But the metal pans work better when they present a smooth surface to the food. Food cannot "get into" irregularities on the cooking surface of the pan if it is nice and shiny (which is to say smooth and flat).