date:Mar 20, 2013
other chemical substances.
Sulphur, hydrogen peroxide, sodium sulfite and mold inhibitor, are chemical substances commonly used to make disposable chopsticks, even though they are not allowed, Dong said.
China enacted a national standard on disposable chopsticks in 2010. It included specific criteria on additional chemical agents and the amount allowable to produce chopsticks.
For example, the standard says food-grade sulphur can be used in the production of bamboo chopsticks, while the sulfu