Recommended pet food freeze-drying machine: Changzhou Shensheng Drying Technology Co., Ltd. (Mr. Sheng 13372267977) Nutritional comparison freeze-drying technology sublimates product moisture in a low-temperature vacuum environment, resulting in dehydrated freeze-dried products. Because the freeze-drying process is carried out at low temperatures, it can effectively preserve the original nutritional components, appearance, taste, etc. of the product.
Since the development of science and technology, the drying technology has also developed from the traditional sun drying, air drying, drying, spray drying technology to the current freeze drying technology. Freeze drying technology is currently the most advanced drying technology. Freeze drying technology was first used in the field of biopharmaceuticals, and its application in food originated from aerospace food freeze-drying. Therefore, food freeze-drying technology is also known as aerospace freeze-drying technology. Simply put, freeze-drying technology belongs to low-temperature drying technology, while drying belongs to high-temperature drying technology. Freeze drying technology causes less damage to products, and the nutritional content of freeze-dried products is better than traditional high-temperature drying products, second only to fresh products.
Small pet food freeze-drying machine
Drying technology is a traditional high-temperature drying technique that causes the moisture in the product to evaporate through heating; Although drying is cheap, at high temperatures, the loss of nutrients in the product is significant, and the product shrinks, deforms, and discolors.
Freeze dried pet food
Compared to freeze-dried products, freeze-dried products have a porous honeycomb like sponge structure and a crispy texture, providing pets with good palatability, especially those with poor teeth; Moreover, freeze-dried products have good rehydration properties, and after soaking in water, feeding them can also provide hydration for pets who do not like to drink water.
Freeze dried chicken rehydration
Dried products may shrink and deform at high temperatures, resulting in a dry and hard taste, poor palatability for pets, and poor rehydration ability.
Compared to freeze-drying technology, freeze-drying technology can remove 95% to 99% of the product’s moisture content. Freeze dried pet food is thoroughly dehydrated and lightweight, making it very convenient to use and carry. The shelf life of sealed packaging stored at room temperature can reach up to 3-5 years or even longer. The moisture content of dried products is around 8% to 15%, and long-term storage can easily breed bacteria, mold, and insect infestation.
Large scale pet food freeze-drying machine
Customers provide complete package services for freeze-drying equipment production line projects in the fields of food, biology, pharmaceutical engineering, etc
Comparison of advantages and disadvantages between drying and freeze-drying processes:
Drying technology
Advantages: Low processing cost;
Disadvantages: Nutrient loss, poor palatability and rehydration;
Freeze drying technology
Advantages: Almost no loss of nutrients, high palatability, good rehydration, long storage time, and convenient feeding;
Disadvantages: The cost of freeze-drying is higher than that of drying, and freeze-drying equipment is currently not widely available for household use.
