It's due to a combination of factors. Copper is a very good conductor of heat, which is pretty much the most important need for heating/cooling systems. And it is widely available, in multiple sizes, and can be worked with conventional tools including soldering torches and so forth. It has more than adequate strength. And does not corrode like iron pipe. Is resistant to breakage during cold weather. And, historically copper (one of the metals known for centuries by man) has been very low in cost. Oh, and it can be joined to other metals, like aluminum and steel in several ways, helping to decrease the manufacturing cost of these systems.
You'll need a spatula to flip the patties, but that is about it.
They used all normal 'stone age' utensils, there were no truly unique utensils in use.
Silicone cooking untensils make great additions to the kitchen. They also function equally well when used on the grill or the outdoor barbecue.
A suitable flour substitute for roux in cooking is cornstarch.
A suitable substitute for carom seeds in cooking recipes is cumin seeds.
A suitable substitute for honey when baking or cooking is maple syrup, agave nectar, or molasses.
A suitable substitute for rice wine in cooking recipes is dry sherry or white wine vinegar.
clay acts as an insulator because its an non-metal and there are no free electrons in it whereas cooking untensils are made of metals with free electrons therefore they can conduct the heat unlike clay :) + the clay will melt if it was over heated
Because metal conducts heat so it get hot, therefore it is cover with plastic/rubber (which don't conduct heat) to stop you burning yourself! :)
A suitable substitute for Marsala cooking wine in a recipe is a combination of equal parts of dry white wine and sweet sherry.
A suitable substitute for Marsala cooking wine in recipes is a combination of dry white wine and a small amount of brandy or sherry.
Yes, coconut oil is suitable for high heat cooking due to its high smoke point and stability at high temperatures.