Faster than a conventional oven, slower than a microwave
A microwave convection oven is an appliance that combines the technology of a microwave oven and a convection oven. It uses microwaves to cook food quickly and evenly, and convection to evenly distribute heat throughout the oven. When the oven is turned on, the microwaves are released from the walls of the oven and penetrate the food. The microwaves cause the molecules in the food to vibrate, which generates heat. This heat is then distributed evenly by the convection fan, which circulates heated air around the food, cooking it quickly and evenly. The convection fan also helps to ensure a more even baking of cakes and other items, as it moves the hot air around to ensure a more even distribution of heat. The combination of microwaves and convection allows for faster cooking times and more even cooking results than with either technology alone.
A conventional oven cooks your food with out air circulation. Where as a convection oven has a fan which allows the air to flow around and cooks your food faster and more evenly.
Convection baking presents a more even heating to the entire exposed surface. This facilitates faster heat flow and more even baking, so baking time is reduced and less problems like hot/cold spots in your oven are encountered. If you bake with multiple racks, convection helps even more because the radiant heat from the elements isn't blocked by the first pan it contacts.
Convection bake involves cooking in an oven that has fans circulating air all around it. Convection ovens cook food faster than conventional ovens.
"The convection oven cooks much faster."
convection
Pizza in an oven recieves heat by radiation from the hot metal casing, and the burner, and by conduction from the air. Convection only heats fluids; so the air around the pizza (which is cooled by it) flows in convection currents, and interracts with hotter air. The pizza is heated faster because of convection heating taking place, but is not heated by it direction.
Aluminium foil disintegrates in a convection oven because the heat rays of the oven hits the aluminium foil but gets reflected by the foil. Thus, the oven over heats and the aluminium foil disintegrates.
A convection oven contains a fan that a regular oven does not. This fan blows the air around inside the convection oven, setting up artificial convection currents that cause the temperature of the air throughout the convection oven to equalize, eliminating hot and cold spots that may be present in a regular oven. Convection ovens can usually bake or roast faster than regular ovens and do it more evenly.
A convection oven contains a fan that a regular oven does not. This fan blows the air around inside the convection oven, setting up artificial convection currents that cause the temperature of the air throughout the convection oven to equalize, eliminating hot and cold spots that may be present in a regular oven. Convection ovens can usually bake or roast faster than regular ovens and do it more evenly.
William Hadaway
Convection ovens have a fan in order to move the heat inside providing faster and more even cooking.