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Due to the moisture-proof, light-proof and anti-oxidation properties of tinplate food packaging cans, it can provide a relatively stable and closed environment for tea, thereby delaying the loss of tea flavor. Therefore, the use of tinplate food packaging cans can significantly extend the shelf life of tea.

if the food in the can is highly acidic or the food is stored for too long, in some extreme cases, tin may dissolve in trace amounts. Even so, the amount of tin dissolved is usually very small and not enough to pose a threat to human health.