Convection ovens

Convection ovens or fan ovens or turbo ovens augment a traditional oven by circulating heated air using a fan. The fan motor is in a separate enclosure, to protect it from overheating and melting any plastic components including wire insulation. Food warms faster in a convection oven, because the moving air strips away the thin layer of air which otherwise would surround and insulate the food. This is the same physical phenomenon which causes wind chill.

By moving fast hot air past the food, convection ovens can operate at a lower temperature than a standard conventional oven and yet cook food more quickly. The air circulation, or convection, tends to eliminate "hot spots" and thus food may bake more evenly.