Identification Of Degradable Tableware

Experts suggest that biodegradable tableware can be identified through several methods such as "looking, smelling, and tearing":
First, check if there is a QS identification and number on the food box; Secondly, it is also necessary to check whether the surface of the food box is smooth and free of impurities or black spots. Generally speaking, transparent plastic lunch boxes are produced using pure polypropylene (PP), which has a relatively high safety factor; A brightly colored lunch box may have used waste plastic, so the darker the color, the less safe it is.
Second touch is to touch the strength of the food box. Food boxes produced using recycled waste or adding a large amount of industrial grade calcium carbonate and talcum powder generally have poor strength and can easily rupture with a gentle tear.
Three sniffs means sniffing the food box to see if there is any odor. A qualified food box cannot smell any odor.
The characteristics of a "black lunch box" can be summarized as six rhymes: soft and fluffy when pinched, easy to tear and burst, pungent and odorous when smelled, easily deformed and leaking when exposed to heat, paraffin marks when folded, and sinking when torn and submerged in water. As long as you remember the rhyme above, you can easily distinguish whether a disposable lunch box is qualified.