The materials, advantages and disadvantages of tea bags?
The common materials for tea bags are basically the three you listed: non-woven fabrics, nylon, and corn fiber. Non-woven fabric refers to polypropylene, which is the same material as mask fabrics. Nylon is also a petrochemical product. This is more common and I won’t talk about it.
Both of these can be made edible, otherwise it would not be possible to make tea bags. The better tea bags I buy in Southeast Asia are nylon bags. If they are popular in Lipton, they have more non-woven fabrics. Even if you use the best materials for the above two kinds of materials, there is no way to solve the problem of high temperature and long-term soaking that will release microplastics. If they are of inferior quality, they will release more toxic substances. Therefore, you can not use this You don’t need either. If you really want to use it, then you have to have a reliable channel to buy high-quality tea bags. If it is inevitable, at least it should be less poisonous. When using it, try to rinse it out and take it out instead of long. Time is high soaking. As for corn fiber, it is the best and the least among the three materials. This corn fiber is not the fiber we usually talk about when we eat, and it is not the kind of corn fiber you see. It is a kind of polylactic acid (PLA). The biodegradable material is also called "corn plastic" in the United States, also called polylactic acid fiber and PLA fiber. The unit price is much more expensive than the other two, at least twice. Moreover, the current global output is very high. Now that the global ban on plastics is being pushed, the demand for PLA is higher, and the production capacity is still increasing. It is estimated that it will be better in three to five years, but in fact, the production capacity is still far from enough.
Most of the corn fiber tea bags on the market are fake. You can tell by burning them on a fire, depending on whether they are burned into ashes or burned into grains.
Therefore, the preferred order of the three tea bags is: 1. Corn fiber (polylactic acid PLA) 2. Other high-quality non-woven fabrics and nylon.
