What details should you pay attention to when using cold storage in winter?
2023-10-10 12:08:52
What details should you pay attention to when using cold storage in winter?
Cold storage use precautions:
(1) All kinds of food, raw materials and frozen goods in the cold storage should follow the "advanced first take" inventory principle and carry out the storage.
(2) Strictly grasp the amount of storage, the daily storage should not exceed 15% of the total storage.
(3) All types of goods in the cold storage shall be neatly placed in accordance with the prescribed storage areas of each department.
(4) All goods must be labeled with the name of the food and the date of production, attached to the outside of the appliance, packing box and packaging bag, facing the passage.
(5) Cooked food should be cooled before storage and stored in a clean, covered stainless steel appliance or bag.
(6) Cooked foods after entering the cold storage should not be exposed to water and ice, and the food should not be in direct contact with the ground. It should be sealed and stored on the shelves.
(7) For some foods with strong flavor, it should be separately covered and sealed with fresh plastic film for isolation and storage to prevent odor in the cold storage and affect the quality of other foods.
(8) Store food, raw materials and frozen goods in the library and check once a month to match the accounts.
(9) Food may not be stored in the cold storage for external units or individuals without the consent of the store manager.
(10) Open the library according to the specified time and lock the library.
(11) The on-duty staff should carefully check the cold storage before leaving work, and they can leave the post without problems.
Cold storage equipment maintenance
Cold storage administrators should always pay attention to the situation around the cold storage, and alarms should be promptly found to ensure the safety of the cold storage.
For the outbound storage of meat or larger materials, fill out the warehouse receipt.
At the same time, it is necessary to clean up the backlog in time. For those who are overdue or deteriorating, the responsible person should report to the head chef and the warehouse manager in time and properly handle it.
(1) After the cold storage is installed or long-term decommissioned, use it again. Wait for the freezing and refrigerating in the cold storage to reach the normal temperature before storing the goods.
(2) Cold storage board maintenance.
During use, care should be taken not to allow the hard objects to collide and scratch the board, as this may cause the depression and rust of the board, which will seriously reduce the local insulation performance of the library.
(3) Maintenance of cold seal parts.
Since the equipment type cold storage is assembled from several insulation boards, there is a certain gap between the boards.
Therefore, in the maintenance, some parts of the seal failure should be repaired in time.
(4) Cold storage ground maintenance.
Generally, the floor of the cold storage of small-sized equipment cold storage uses insulation boards, and when using the cold storage, the ground should be protected from a large amount of ice and water;
If there is ice, do not use hard objects to knock when cleaning, so as not to damage the ground.
Cold storage maintenance
(1) Anti-mildew sterilization and disinfection of cold storage.
1) Cold cooking and cooking ingredients and foods contain certain fats, proteins and starches. These nutrients can cause a large number of bacteria to proliferate.
In order to do a good job in the cold storage hygiene management and ensure the refrigerated quality of food and cooking materials, it is necessary to carry out cold storage sanitation and disinfection work on time;
2) The mold removal and disinfection of the cold storage, the chlorine-containing preparation in the chemical disinfection method.
The bactericidal action of chlorine-containing preparations is mainly the protein in the clotting bacteria.
Commonly used disinfectants are 84 disinfectant, filtered acetic acid, etc.;
3) When spraying and disinfecting an aqueous solution containing a filtered acetic acid concentration of 0.5% to 1%, it is strictly prohibited to spray on food, raw materials and other goods.
(2) Methods to prevent the occurrence of odors in cold storage.
1) Foods that have been refrigerated in cold storage must be inspected, and no deterioration or odor can be placed in stock;
2) It is usually necessary to strengthen the maintenance of the refrigeration equipment, and it is strictly forbidden to dump the unloading to avoid damaging the pipeline.
Causing the leakage of refrigerant, so that the cold storage can not be used for a long time, resulting in deterioration of food and odor;
3) During the process of leaving the food, the cold storage warehouse must be kept at normal temperature;
4) Frozen foods should not be transferred or stored, resulting in repeated freezing, which is prone to deterioration or odor;
5) If the temperature of the cold storage warehouse is not lowered, the reason should be found, and then the warehouse should be removed after being excluded;
6) Do not mix and store foods that are infected with each other in the cold storage.
(3) Equipment maintenance of cold storage
1) Always check and confirm whether the voltage of the power supply call meets the requirements, and the voltage should be 380ν±10%;
2) Do not stack debris around the refrigeration compressor unit;
3) Do not stack the items before the evaporator, so as not to affect the cooling effect;
4) The refrigeration pressure-aged unit protection has been set in advance and no adjustment is needed;
5) The refrigeration compressor unit does not need to be refueled under normal conditions, if it is determined that it needs to be refueled.
Engineers should be added to the special oil for the compressor. The amount of fuel added shall be determined by the engineer and shall not be added without authorization;
6) The operation of the control cabinet or the observation of the temperature table changes;
7) It is forbidden to contact the electrical parts and the computer control cabinet with water to avoid damage;
8) Do not disassemble the refrigeration unit and electronic control components at will;
9) Do not connect the power of other appliances in the control cabinet at will.
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