What are the types of cold storage?

What are the types of cold storage? Many of our foods need to be refrigerated, so there are cold storages in many places. Cold storage is a link in the cold chain system after the initial temperature of products drops sharply, and it is also the stronghold where low-temperature products stay in the cold chain system for the longest time. So what are the types of cold storage?

What are the types of cold storage? 1 classification of cold storage?

Cold storage is a link in the cold chain system after the sudden drop of temperature in the initial stage of products, and it is also the stronghold where low-temperature products stay for the longest time in the cold chain system, so the requirements for product quality play an important role in low-temperature logistics management.

Cold storage can be roughly divided into two categories: cold storage mainly stores fruits and vegetables, fresh fish, fish eggs, eggs, fresh milk and juice, and cold storage mainly stores meat and ice cream.

First, according to the temperature, the cold storage is divided into cold storage, cold storage and special cold storage according to the temperature of the warehouse.

(1) Refrigeration in which the storage temperature is maintained above the freezing temperature of the product belongs to refrigeration. Generally, the freezing point of fresh food is above -2℃. Due to the different properties of various products, the storage temperature is also different, mostly below 4℃.

(2) The freezer belongs to the freezer that keeps the product temperature below the freezing temperature, such as frozen fish or meat stored for a long time, frozen food, etc. The temperature in the freezer is below MINUS 23 degrees.

(3) Special cold storage Any need to control the temperature and humidity in the warehouse at the same time belongs to special cold storage, such as the refrigeration of fresh fruits and vegetables.

Second, according to the purpose of the cold storage

① Production-oriented cold storage is an important part of food processing enterprises, which is mainly built in areas where the supply of goods is concentrated near the food producing areas. Fish, meat, poultry, eggs, fruits, vegetables and other perishable foods, after proper treatment, are sent to the cold storage for cold processing and then transported to the sales area.

It is characterized by large cold working capacity and a certain refrigerated tonnage for turnover. The characteristic of food circulation is zero in and all out. Its cold storage capacity is determined by cooling, freezing capacity and transportation conditions. Because a lot of raw materials and finished products need to be allocated, it is required to be built in a place with convenient transportation.

(2) Circulation cold storage mainly receives cold-processed food, which is generally built in large and medium-sized cities, densely populated industrial and mining areas and land and water transportation hubs for market supply, transportation transit and food storage.

It is characterized by large cold storage capacity and small freezing capacity, and it is also necessary to consider the storage of various foods. The characteristics of food circulation are different from those of cold storage. Due to the large amount of cold storage, the import and export are relatively concentrated, which requires smooth transportation and rapid processing.

The temperature varies with the use requirements.

Three, according to the storage period, divided into storage type and circulation type.

Four, according to the construction method is divided into civil library and assembly library. Civil engineering warehouses can be divided into single-storey warehouses, multi-storey warehouses and three-dimensional automatic cold storage.

Five, according to the storage methods can be divided into mechanical refrigeration storage and modified atmosphere storage.

What are the types of cold storage? First of all, according to the nature of use.

Can be divided into three types: production, distribution and service.

Second, distinguish by capacity.

Can be divided into large, medium and small cold storage. The capacity of large cold storage is above 1 10,000 tons, that of medium cold storage is around 1 10,000 tons, and that of small cold storage is below 1 10,000 tons.

Third, distinguish by temperature.

It is divided into three types: high temperature, medium temperature and low temperature. A high temperature cold storage is also called -5℃ to +7℃ fresh storage, a medium temperature cold storage of-10℃ to -23℃, a low temperature cold storage of -23℃ to -30℃, and an ultra-low temperature cold storage below 32℃.

Fourth, distinguish according to the items stored.

Above 0℃, it is suitable for storing fruits and vegetables, meat, fungi, green plants, electronic raw materials, flowers, drinks, beer and other foods.

Suitable for storing aquatic products, seafood, ice cream, meat, medicines, chemicals and other items below 0℃.

Suitable for freezing meat, fish, seafood, medicine and chemical industry below -20℃.

Fifth, distinguish by function.

Can be divided into fresh-keeping warehouse, pre-cold storage, quick-freezing warehouse, controlled atmosphere warehouse and so on. , such as vegetable fresh-keeping warehouse, vegetable pre-cold storage, pork acid pre-cold storage, meat quick-freezing warehouse and so on.

What are the types of cold storage? 3. Classification:

(1) cold storage can be divided into civil cold storage and assembled cold storage (mobile cold storage) according to the structural form.

(2) Cold storage can be divided into production cold storage, distribution cold storage and retail cold storage according to the nature of use.

(3) Cold storage can be divided into large cold storage, medium cold storage and small cold storage.

(4) According to the refrigeration equipment of cold storage, cold storage can be divided into ammonia cold storage and Freon cold storage.

(5) According to the requirements of using temperature, cold storage can be divided into high temperature cold storage, medium temperature cold storage, low temperature cold storage, ultra-low temperature cold storage, cold storage and quick-frozen cold storage.

(6) Cold storage can be divided into high-grade cold storage, low-grade cold storage, glass fiber reinforced plastic cold storage, color steel cold storage and stainless steel cold storage according to the structural materials and grades used.

(7) Cold storage can be divided into supermarket cold storage, constant temperature cold storage and modified atmosphere cold storage according to the characteristics of use and storage.

(8) Cold storage can be divided into medicine cold storage, food cold storage, fruit cold storage, vegetable cold storage, tea cold storage, etc.

Pictured: Real shot of large cold storage

At present, from the development trend of cold chain industry, small and medium-sized fruits and vegetables are deeply loved by fruit farmers and distributors. Modified atmosphere storage technology further prolongs the fresh-keeping life on the basis of conventional refrigeration.

If you want to build a cold storage. First of all, the following information should be provided: the purpose, size and temperature of the cold storage. Anhui Kende Refrigeration is a refrigeration organization specializing in cold storage design, cold storage installation and cold storage construction. It designs and builds cold storage projects with different specifications and requirements for customers and has provided cold storage construction services for thousands of customers. You are welcome to consult us.

What are the types of cold storage? 4. According to the capacity scale of the cold storage.

It can be divided into large cold storage, medium cold storage and small cold storage.

Large cold storage: the capacity of cold storage is above 10000 tons;

Medium-sized cold storage: the capacity of cold storage is 1000~ 10000 tons;

Small cold storage: the capacity of cold storage is below 0- 1000 tons.

According to the design temperature of the cold storage

It can be divided into high temperature library, Chinese library, low temperature library and ultra-low temperature library.

High temperature storage: also known as constant temperature storage, the design temperature is 5 ~ 15℃.

Medium temperature storage: also known as cold storage, the design temperature is 5 ~-5℃.

Low temperature storage: also known as freezer, the design temperature is-18 ~-25℃.

Quick-frozen warehouse: also known as quick-frozen warehouse, the design temperature is -35 ~-40℃.

Ultra-low temperature storage: also known as deep cold storage, the design temperature is -45 ~-60℃.

According to the nature of cold storage

It can be divided into productive cold storage, distributive cold storage and retail cold storage.

Productive cold storage: places where frozen products are stored at low temperature with large cold storage processing capacity and fixed cold storage capacity, such as meat joint processing plants and dairy joint processing plants.

Distribution cold storage: also known as transit cold storage, used to receive and store frozen food. The production characteristics of this kind of cold storage are whole-in and whole-out or whole-in and whole-out, which has a certain freezing capacity and can meet the necessary freezing needs of food. In addition, it is often located in land and water transportation hubs, large and medium-sized cities and populous industrial and mining areas.

Retail cold storage: refers to the cold storage built in industrial and mining enterprises or large non-staple food stores and vegetable markets in cities for temporarily storing retail food. Its characteristics are small storage capacity, short storage period, and storage temperature changes with the use requirements. In the structure of the warehouse, most of them adopt assembled combined cold storage.

Classification by refrigerated goods

It can be divided into drug refrigeration, meat refrigeration, blood refrigeration, vaccine refrigeration, fruit refrigeration, vegetable refrigeration, medicinal materials refrigeration, aquatic products refrigeration and so on.

1. Cold storage of drugs: Cold storage at low temperature can prevent the deterioration and invalidation of drugs, extend the shelf life of drugs, and meet the technical requirements of medical supervision bureau.

2. Meat cold storage: the cold storage is preserved by artificial refrigeration, which is suitable for buildings with frozen meat.

3. Cold storage of blood: Cold storage at low temperature (2℃-8℃) ensures that fresh blood and plasma will not deteriorate and fail, which meets the technical requirements of the Medical Supervision Bureau.

4. Vaccine cold storage: a cold storage that keeps vaccines from deteriorating and failing at low temperature, prolongs the shelf life of drugs, and meets the technical requirements of the Medical Supervision Bureau.

5. Fruit cold storage: usually divided into fresh-keeping storage and modified atmosphere storage. Using low temperature or adding equipment to control the content of oxygen, carbon dioxide and other gases in the barn, inhibiting the activity of microorganisms and enzymes, thus prolonging the storage time of fruits, which is very suitable for the storage and processing of most fruits.

6. Vegetable refrigeration: There is little difference from fruit refrigeration, which is often divided into vegetable preservation and modified atmosphere storage. Using low temperature or increasing the content of oxygen, carbon dioxide and other gases in storage to inhibit the activity of microorganisms and enzymes is very suitable for the storage and processing of most vegetables.

7. Cold storage of medicinal materials: a cold storage that keeps medicinal materials (biological and mineral Chinese medicinal materials) from deterioration and invalidation at low temperature and meets the technical requirements of the Medical Supervision Bureau.

8. Cold storage of aquatic products: It is often used for frozen storage of aquatic fish and seafood, which can prolong the shelf life of seafood and maintain its original flavor.