Pet food freeze dryer is the abbreviation of pet food vacuum freeze dryer, also known as feed freeze dryer. It is a device that integrates refrigeration technology, vacuum technology, and other technologies with the ability to sublimate and dry pet food. With the increasing concern for pet health and nutrition, the application of pet food freeze dryers is also becoming more and more widespread. This article will introduce the principle, production process, advantages, and application fields of pet food freeze dryers.
The principle of pet food freeze dryer is based on the coexistence and conversion of liquid, solid, and gas phases in different temperatures and vacuum environments. The method of dehydration of pet food is achieved by using the sublimation principle, in order to maintain its nutritional content, extend the shelf life of pet food at room temperature, and increase stability.
Pet food freeze dryers usually consist of a freeze-drying chamber, refrigeration unit, vacuum unit, circulation unit, PLC electronic control, etc. Firstly, pet food is rapidly frozen at low temperature in a freezer to form a solid, and then the ice is transformed into water vapor through a high vacuum environment in the compartment, directly transforming from solid to gas. This process is called sublimation. Then, the temperature is controlled by a partition system through a circulation system to remove moisture from pet food through sublimation, thereby achieving the drying requirements of the pet food.
The process of making pet food usually involves the following steps: first, select ingredients suitable for pets, including meat, vegetables, and grains. Secondly, cut or squeeze the ingredients into appropriate sizes and add an appropriate amount of nutrients according to the pet’s needs. Then, put the pet ingredient samples into the pet food freeze dryer for freeze-drying treatment. Then, package the freeze-dried pet food to maintain its freshness and nutrition.
Pet food freeze dryers have many advantages:
1) This device can remove 95-99% moisture from food, thereby extending the shelf life of the food. This is particularly important for pet food, as pet food often needs to be stored for a long time.
2) Freeze drying technology can maintain the nutritional content of food. Compared to other processing methods, freeze-drying does not damage the nutrients in food, allowing pets to obtain more nutrients.
3) The pet food freeze dry machine can also improve the taste and flavor of food, and after freeze-drying treatment, the substance becomes crispy, making pets more fond of eating.
The application of pet food freeze dryers is widespread, such as processing and production of chicken breast freeze-drying, beef freeze-drying, duck freeze-drying, egg yolk freeze-drying, shrimp freeze-drying, vegetable meat freeze-drying, probiotic freeze-drying blocks, etc. In addition, pet food freeze dryers are also used for feed freeze-drying, feed additive freeze-drying, and other applications.
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