How do tea tins extend their shelf life by blocking moisture and light?
Tea leaves are highly hygroscopic, easily absorbing moisture and odors, leading to mold growth, flavor loss, and a shortened shelf life. In addition, exposure to light, especially ultraviolet light, causes chlorophyll to decompose and essential oils to oxidize, making the tea taste deteriorated and bland. Therefore, we must effectively protect tea tins from moisture and […]

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