Cold storage generally refers to facilities that use various equipment for cooling, can be artificially controlled, and maintain stable low temperatures. Its basic components are: refrigeration system; Electric control device; A warehouse with certain insulation performance; Attached buildings, etc.
What is cold storage preservation and storage:
Storage and preservation, also known as freshness preservation, mainly involves preserving the original quality and freshness of some agricultural products for a long period of time. This means that fresh agricultural products, after being stored for a period of time, are still in their fresh state and quality when just picked or close to when just picked.
The relationship between temperature and the preservation and storage of agricultural products:
After harvesting, agricultural products are still fresh and live. In order to maintain their life during storage, they need to cut off their own storage nutrients, gradually losing their nutritional value and fresh quality. In addition, pests can also use the stored nutrients of agricultural products as food, resulting in the spoilage and loss of freshness and edible value of agricultural products. Temperature is an important influencing factor on how to preserve the nutritional and fresh quality of harvested agricultural products. Generally speaking, the lower the temperature, the less nutrients are consumed by the product, the worse the damage caused by diseases and pests, and the longer it takes to maintain fresh quality. The smaller the temperature change, the better the preservation effect. The preservation temperature is not unlimited, because when the temperature is too low for the product to tolerate, it can also cause cold or freezing damage. So, preservation and storage require a relatively stable and suitable low temperature condition. The suitable preservation temperature for most agricultural products is around 0 ℃.