1, starch:

Disadvantages: Anti-mildew technology has not been solved, and the cost is too high. Even if the technology passes through in the future, it is difficult to form a market because China is a food-deficit country.

2, double degradation plastics:

Disadvantages: This kind of tableware only adds photosensitizer and starch to the plastic. The added part is degradable, and the plastic part still cannot be degraded. Therefore, it is not a green product in the true sense and should not be promoted.

3, pulp category:

Disadvantages: A, a paper mold lunch box weighs 25 grams, the cost is 0.35 yuan, and the daily output of 40,000 lunch boxes requires one ton of pulp, which is equivalent to cutting trees of more than tons, calculated by 300 working days a year. Cutting down nearly 300 cubic meters of trees is undoubtedly worse for China, which is a forest-poor country, and the resulting soil erosion and land desertification are even more unimaginable.

B, coupled with the high price, consumers are difficult to accept.

C, should not take the soup, the toughness is not enough.

4. Plant fiber.

Advantages: First, the source is renewable resources; second, it does not pollute the environment during and after the formation; third, it saves resources during the re-production process. Plant fiber disposable tableware is made from annual herbaceous straw fiber.

Disadvantages: not much production, it is difficult to buy on the market.