Cooking is the human process or skill of preparing food for eating by combining, mixing, and heating various ingredients. Methods of heating vary widely depending on the dish being prepared, cultural customs, the skill set of the cook, and available resources, with techniques ranging from baking, to boiling, to frying, to roasting, to smoking, and so on. This process of heating food for consumption is unique to humans, and has been deeply influenced by the cross-cultural exchanging of ingredients throughout history. Cooking is usually done in a kitchen with the aid of appliances, and may be done out of pure necessity, for recreational purposes, or even professionally in restaurants.
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