Tea packaging materials and methods

Ordinary metal cans cans are made of thin paper, with square and cylindrical cans. They are covered with single and double lids. Its disadvantage is that the seal is not good, and the tea leaves will absorb enough moisture when exposed to moist air for an hour. The softening of the tea will lead to metal odor. At the same time, the tea will be oxidized for a long time and it cannot be stored for a long time.

Composite film bag packaging Commercial tea packaging more and more using composite film bag packaging, its disadvantage is not light, airtight, over time, will make tea moldy, smelly. Chlorophyll and other components undergo photocatalytic reactions.

The plastic molding container packaging is packaged by polyethylene, polypropylene, polyvinyl chloride, and other molding containers. Because of its poor sealing performance, it is mostly used as an external packaging, and its packaging is mostly packaged in plastic bags. Because plastics and green tea play a role in chemistry, the taste of tea is lost, and the airtightness is poor. The smell in the cans affects the quality of the tea.

Lined bag boxes are made of cardboard with inner layer of plastic film or coated with moisture-proof paint to make packing boxes for packaging materials. Because the plastic bag and the green tea play a chemical role, the taste of the tea is lost. At the same time, the adhesive and the coating have an odor, which can contaminate the tea and make the tea tasteless. And its tightness is poor.

Tin packaging tin cans are the best containers for storing tea. Tin is widely used in food industry at home and abroad. It is the best material for fresh food packaging, also known as "green metal." Because tin cans have the characteristics of strong anti-oxidation ability, good airtightness, low air permeability, good conductivity, no metal odor, etc., they have long been used as a utensil for storing tea and drinking tea. Jars of tea storage for longevity and durability, no mildew, up to 10 years. In particular, fine tea storage tea made from pure tin has the effects of keeping food fresh, preventing oxidation, blocking light, and producing no offensive odor.