Does cooking always require heat?
I think so. Can you think of anything that you'd call cooked without heat?
and other food establishments. Cooking can also occur through chemical reactions without the presence of heat, such as in ceviche, a traditional South American dish where fish is cooked with the acids in lemon or lime juice.
Preparing food with heat or fire is an activity unique to humans. It may have started around 2 million years ago, though archaeological evidence for it reaches no more than 1 million years ago.
The expansion of agriculture, commerce, trade, and transportation between civilizations in different regions offered cooks many new
water." The amount of flour in the pancakes is left up to the cook with the instruction "make it as thick as you think good with fine Wheat-flower". He includes the sweet spices cloves, mace, cinnamon, and nutmeg, and serves the pancakes strewn with sugar. The recipes rarely give any details of the heat or time required for cooking: thus the pancake recipe merely says "make them brown". But the book does explain how to roast meat so it is properly cooked.