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Common packaging methods of tea

     In daily life, ordinary metal can packaging metal can is made of thin paper. The can shape is square and cylindrical, and its cover is divided into single-layer cover and double-layer cover. Common packaging methods of tea.

    Its disadvantage is poor sealing, and tea leaves will absorb enough water, soften and deteriorate after being exposed to humid air for one hour. Iron has metal odor. At the same time, it is easy to be oxidized over a long time, so it can not preserve tea for a long time.Common packaging methods of tea.

Common packaging methods of tea

    Composite film bag packaging at present, more and more commercial tea packaging adopts composite film bag packaging. Its disadvantage is that it is not dark and airtight. Over time, it will make tea moldy and have peculiar smell. Chlorophyll and other components undergo photocatalytic reactions.Common packaging methods of tea.

    Plastic molded containers are packed by polyethylene, polypropylene, polyvinyl chloride and other molded containers. Because of their poor sealing performance, they are mostly used as outer packaging, and their inner packaging is mostly sealed with plastic bags. Because plastic is easy to play a chemical role with green tea, the taste of tea is lost, and the tightness is poor. There is a peculiar smell in the tank, which affects the quality of tea.

     The lined bag box is made of plastic film or paperboard coated with moisture-proof coating as the packaging material. Because plastic bags are easy to play a chemical role with green tea, the taste of tea is lost. At the same time, the adhesive and coating have peculiar smell, which will pollute the tea and change the taste of tea. And its airtightness is very poor.Common packaging methods of tea.

     Tin packaging tin can is the best container for storing tea. Tin is widely used in the food industry at home and abroad. It is the best material for food preservation and packaging, also known as “green metal”. Because tin cans have the characteristics of strong antioxidant capacity, good air tightness, low air permeability, good conductivity and no metal odor, they have been used as tools for storing and drinking tea for a long time.Common packaging methods of tea. 

    According to the inspection of relevant institutions, storing tea in tin cans can keep aroma, quality and mildew for more than ten years. In particular, the fine tea storage pot made of pure tin has the effects of closed preservation, anti-oxidation, blocking light and no peculiar smell.Common packaging methods of tea.

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