The principle of microwave equipment to puff food is to use the penetration of microwaves to heat the food, so that the water in the food evaporates quickly, creating a pressure difference and puffing the food. Specifically, the microwave generator in the microwave equipment generates high-frequency microwaves. Through the material in the microwave cavity, the polar molecules in the material quickly turn and vibrate in the alternating electromagnetic field. Due to the high frequency of the microwave, the molecules rotate The speed is very fast, causing a large amount of friction heat to be quickly generated inside the material, and the temperature inside the material rises rapidly. When the temperature reaches the melting point of the material, the material will melt; at the same time, because the moisture in the material is quickly evaporated into gas, A strong pressure is formed inside the molten material. When the pressure exceeds the capacity of the material cells, the material will expand.

The advantages of microwave puffing equipment are fast heating speed, good puffing effect, easy control, and simple operation. At the same time, since there is no need to add any chemicals during the puffing process, the taste and nutritional content of microwave puffed food are better maintained.

Microwave food puffing equipment can be used for rapid puffing and baking of puffed food, rice products, crispy rice, soy products, pig skin, fish maw, fish skin, potato chips, potato chips, shrimp crackers, shrimp crackers and other products. Among them, microwave pig skin puffing equipment, fish maw puffing equipment, shrimp cracker puffing machine, crispy rice puffing machine, etc. are the most widely used.