Puffing is everywhere
【Explanation of terminology】Puffing
【 Pinyin】péng huà
Puffing is a food processing method. It is to put the processed food into a sealed container, heat and pressurize it, and then suddenly depressurize. The water in the food vaporizes and stretches, making the dog food Many small holes appeared in it and became loose and hard, becoming puffed dog food. The basic principle is to suddenly decompress the raw materials under heating and pressure to cause them to stretch. Puffing technology is a new food processing technology that began in 1910 and was used in pet food in the 1950s. In the United States, the United States first began to use the extrusion principle to produce pet food, that is, using the screw and screw sleeve in the extruder to heat and pressurize the raw materials by extruding them, and converting the high-temperature and high-pressure materials into The food is extruded out of the die hole and undergoes a process in which the volume rapidly expands due to sudden pressure reduction. The puffing process is also a process of forming dog food raw materials. During the molding process, water is added in the form of steam to gelatinize the raw starch in the dog food and heat it up to 100℃~180℃. Because the pressure before extrusion is very high, the extrusion The pressure is instantly released when it comes out, causing the dog food to expand and foam quickly and the water to evaporate. Therefore, dog food that has been made through the puffing process generally has high nutritional value that is easy to digest and absorb.
[Purpose of Puffing]The important means of making pet food using puffing are:
1. To improve the deliciousness of dog food, it becomes crispy and firm after puffing, and it also has the effect of cleaning the mouth and teeth. ;
2. Change and improve the nutritional value of dog food. Only after starch is gelatinized can it become nutritious and absorbed by pets;
3. Improve pets’ digestion and absorption rate of puffed food, making pets more Completely absorb all the nutrients in pet food;
4. The puffing process is also a high-temperature and high-pressure process, which can kill various molds, monkshood and other harmful substances, and improve the safety and hygiene of pet staple food.
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