There are many types of tea bags on the market, and because of the independent small bag packaging, it is very convenient to make quantitative and brewing.

"Tea bag" material

Silk/cotton tulle:

This should be the packaging material used in the early generation of teabags, but it is rarely used now. The main chemical composition of silk is protein fiber (consisting of amino acids), while cotton yarn is plant cellulose. (Macropolysaccharide , the main component of the plant cell wall), generally both are harmless to the human body, but its processing and packaging performance is poor.

PET tea bag:

PET is an abbreviation of polyethylene terephthalate. It is a kind of polyester fiber. It has high texture and high transparency as a teabag packaging. It also has excellent bag making and shape retention. No dissolution, no harm to the human body and the environment, but this type of fiber is relatively poor in acidity and alkalinity at high temperatures, so the brewing of some tea leaves may not be very good.

PA polyamide mesh:

PA polyamide mesh cloth is nylon fiber. The mesh cloth is colorless and odorless. Through its transparent high-quality heat-resistant mesh cloth, it can see the real material of the packaged tea. It has been popular in recent years, especially the fancy tea is mostly made of nylon. Tea bag has the advantages of strong toughness, not easy to tear, strong visual permeability, and larger mesh size, which makes it easier to make tea. This is one of the reasons why a large amount of fancy tea is made of nylon tea bag. The disadvantage is that the industrial sense is strong. When brewing tea for more than 90 ° C for a long time, it may release harmful substances.

Corn fiber degradable mesh:

Made from renewable plant resources (such as corn), the proposed starch raw material, commonly known as "corn fiber", has good biodegradability, can be completely degraded by microorganisms in nature after use, under specific conditions, and finally The generation of carbon dioxide and water, which does not pollute the environment, is recognized as a promising new generation of sustainable green environmental protection filter.

Filter paper fiber composite tea bag:

The filter paper has a large wet strength and a certain filtration speed, and is resistant to boiling water. At the same time, it should be adapted to the automatic packaging machine of the teabag, the dry strength and elasticity of the package, but also because of the poor packaging performance of the filter paper or natural plant fiber. Therefore, it can be combined with some synthetic, polymer fibers to form a packaging bag, such as a heat-sealing filter paper formed by copolymerizing with polyvinyl acetate and polyvinyl chloride, and copolymerizing with some resins to improve the boiling water resistance of the filter paper. The ability to brew, etc., this type of fiber may have a higher health risk for the human body.

How to distinguish genuine nylon/corn fiber tea bags

Burn with fire:

The nylon material tea bag is burned with a lighter and the color is black; the corn fiber cloth tea bag is burned with fire, which feels a bit like burning hay, and also has a botanical fragrance.

Tear hard:

The nylon material tea bag is difficult to tear; the corn fiber cloth tea bag is easily torn.