Different grades of calcium hydroxide may have differences in storage time, as calcium hydroxide may react with carbon dioxide and lose its original function. Therefore, special attention must be paid to the storage environment or temperature. Below is an analysis of how long food grade calcium hydroxide can be stored.

How long can food grade calcium hydroxide be stored

Food grade calcium hydroxide should generally not be stored for too long, mainly around 3 to 4 months after leaving the factory. If it is not stored properly, it may only last for about two months. For example, it is necessary to seal it properly during storage. Once it comes into contact with air, it is easy to deteriorate, and abnormal phenomena may occur after deterioration.

What are the requirements for storing food grade calcium hydroxide

Pay attention to the environment

When storing food grade calcium hydroxide, it is necessary to choose sealed storage and avoid contact with air. Because once in contact with air, carbon dioxide will react and easily form calcium carbonate, which can also affect the quality. It is recommended to store it directly in a glass bottle and use a rubber stopper to achieve a sealing effect. It can be stored in a dark place during normal storage. If stored in a dark place, it can generally last for about 2-3 months.

Pay attention to the storage temperature

When storing food grade calcium hydroxide, attention should also be paid to the storage temperature. It should be kept away from heat or fire as much as possible and stored in a cool and ventilated place. At the same time, it should be stored separately from acidic substances. Samples that are prone to spoilage should be kept in a refrigerator at least at 0-5 degrees Celsius, but the storage time should not exceed three months. Some samples are prone to decomposition, so they should be kept away from sunlight during storage. In special cases, preservatives that do not affect the results can also be added, which can have a good effect during storage.

Food grade calcium hydroxide is mainly used in the catering industry, so it is important to pay attention to preservation. Once quality problems occur, it will affect normal consumption. Therefore, how long can it be maintained during preservation? It is important to choose the right method, as the above points are crucial.