Why do people prefer to choose tin box packaging for tea？

1、 Opacity. Light is always been the cause of food deterioration. Tea is also prone to deterioration when exposed to light. The blackness of tinpot can effectively improve the preservation rate of tea and ensure the original juice, color, taste and fragrance of tea.
2、 Good sealing. The barrier of packing container is very important for tea preservation. The oxygen permeability of the iron pot is lower, which can better preserve tea.
3、 Reduction of tin. Tin on the inner surface of tinplate will react with the oxygen to reduce the chance of oxidation of food ingredients, which can extend the storage period of tea. In addition, the tin can also has a heat-resistant function, which completely insulates from the influence of environmental factors. It will not change the quality of the color avoiding food due to light, oxygen and moisture, nor will it change the flavor due to fragrance overflow or environmental odor pollution. Therefore, the stability of food storage is better than other packaging materials