The first is to see if there is QS on the outside of the biodegradable straw; if there is color, the safety of the biodegradable straw will be reduced; if there is color, the dark one should be paid special attention to; if there are black spots or broken bubbles in the biodegradable straw, because these are the characteristics of unqualified products. Next, we should "smell" and smell whether there is any pungent smell before the degradable straw is not touching the beverage. The third is to pinch hands, if you pinch the biodegradable straw flat without elasticity, it shows that the biodegradable straw is made of thin materials, poor quality, in the use of the process will be easy to be absorbed flat.

The general plastic products made from the old degradable pipettes contain polyethylene and polypropylene, which can produce harmful substances at high temperatures.

"Sanwu" biodegradable straw may be made from recycled waste plastic, once exposed to high temperature, it will produce toxic substances, endangering health. The quality of the "three no" plastic biodegradable straw must be problematic, because it is made of inferior or recycled plastics, may use pigments to cover impurities. Once it is used to drink fruit juice or hot drinks, harmful substances will then be dissolved, thereby causing harm to the human body.

"Sanwu" plastic biodegradable straws may be produced from industrial grade polyethylene or waste plastics. If consumers use them for a long time, the degradable straws in beverages will damage the human liver, causing blood diseases or nervous system diseases; and the brighter the color of the degradable straws, the greater the potential safety hazards, such as drinking hot drinks with such degradable straws. The harmful substances in the degradable pipette will be released and endanger human health.