The round tin box of tea should be properly preserved. Not all problems have been solved after the purchase of tea Tin Cans. When we buy a piece of clothing, we need to maintain it, not to mention a batch of tea Iron Cans. Especially in the south, the return tide weather is very serious, and the air is humid. This situation should be noted. The purchased tea cans should be placed in a dry environment. It is better to have an air conditioner in the warehouse for moisture extraction, or put desiccant or lime to absorb the moisture in the air. Tea cans are generally coated with tin to prevent rust and discoloration. If the tin layer is damaged, it will easily rust in contact with the air.