The reason is that it can be moisture-proof and mildew-proof.

For example, in the warehouse of aquatic products refrigeration plant, the finished luggage should not be directly stacked on the ground, but should be placed on the food cabinet, and the shelf should be more than 10 cm away from the wall and the ground.

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Supermarket goods should be placed neatly on the shelves after classification, and food information should be entered into the "electronic one-vote system".

It is impossible for food to be sold on the counter immediately after processing. It usually needs to be kept in the warehouse for a few days. Shelf storage environment and management are not standardized, which has hidden dangers to food quality and safety to some extent.