An oven is a thermally insulated chamber used for baking, roasting, or drying. Ovens can be heated by electricity, natural gas or propane, or wood. The first ovens were simple pits in the ground, but modern ovens are highly sophisticated appliances that can be used to cook a wide variety of foods.
Ovens play an important role in the preparation of food. They can be used to cook everything from simple dishes to elaborate meals. Ovens are also used to preserve food, such as by canning and drying. The invention of the oven has had a profound impact on human history, making it possible to cook food more efficiently and safely.