FOOD TECHNOLOGY

Detailed explanation-1: -Heat can be transmitted though empty space by thermal radiation often called infrared radiation. Examples of radiation is the heat from the sun, or heat released from the filament of a light bulb. In traditional ovens transfer of heat is via radiation.

Detailed explanation-2: -In an oven, the hot air flows by natural or forced convection while heat is distributed from the heating element by radiation. During baking process, heat is also transfer by conduction from the baking metal container to the baked product.

Detailed explanation-3: -A microwave oven cooks food because of the transfer of energy by radiation. Convection is the transfer of heat by movement of molecules from one place to another in a gas or a liquid.