An oven is a sealed electrical appliance used to bake food or dry products, which can be divided into household appliances and industrial ovens. Home ovens can be used to process some pasta. Such as bread, pizza, and cookies. There are also ovens that can roast chicken. The food is usually fragrant. Industrial oven is a kind of equipment used to dry products in industry. There is electricity and gas, also called oven and drying box.