There are three common materials for tea bags: non-woven fabric, nylon and corn fiber.

1. Non woven tea bag

Non woven fabric refers to polypropylene (PP), which is the same material as mask fabric.

2. Nylon tea bag

Nylon is a petrochemical product. It has many categories and is very common in life.

The above two can be edible, otherwise they can't be used to make tea bags. The better tea bags I bought in Southeast Asia are nylon bags. If Lipton is popular, there are more non-woven fabrics. Even if you use the best materials, you can't solve the problem that micro plastics will be released when soaking at high temperature and for a long time. If they are inferior, more toxic substances will be released. Therefore, if you can't use them, you don't need them. If you really want to use them, you have to have a reliable channel to buy high-quality tea bags. If you can't avoid it, at least reduce the poison, When using, try to flush it out, and don't soak it for a long time.

3. Corn fiber tea bag

As for corn fiber, it is the best and least of the three materials. This corn fiber is not what we usually say when eating, nor what you see in corn whiskers and leaves. It is a biodegradable material called polylactic acid (PLA). It is also called "corn plastic" in the United States, also known as polylactic acid fiber and PLA fiber. The unit price is much more expensive than the other two, at least twice. Moreover, at present, the global output is very high. Now the global ban on plastic is pushed, the demand for PLA is higher, and the production capacity is still increasing. It is estimated that it will be better in three or 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. Just burn them with fire to see whether they are burned into ash or grains.

Therefore, the preferred order of the three tea bags is:

1. Corn fiber (PLA)

2. Other high-quality non-woven fabrics and nylon.