At least 32 people are on trial in China, for collecting used cooking oil from street gutters, then selling it back to restaurants.

A company that was supposed to be creating biodiesel from used oil, instead found it cheaper to simply strain the used cooking oil and sell it back to restaurants.

Also, according to local police, the company was using a “white substance” to remove the nasty smell from the used cooking oil.  Some local media speculate that it causes cancer.

China’s fast booming economy is causing rapid inflation, many individuals, and mom & pop businesses can’t keep up.  Buying recycled cooking oil is a cheap alternative.  One report said the price of new cooking oil in China is about 10,000 yuan, or $1,560 a ton, while ‘gutter’ oil sells for around 8,000 yuan to 9,000 yuan.

This is not the first scandal relating to food safety in China.  Scandals have included melamine tainted infant formula, and pork tainted with the chemical clenbuterol.   Melamine gives false increased protein levels in dairy products.  Clenbuterol helps make meat leaner.  The Chinese government says both can be harmful to humans.

Here in the United States the FDA has approved the use of clenbuterol in animals, but not in humans.  However, the FDA is out on melamine.  Their latest studies showed that melamine was dangerous only when combined with other chemicals.  One study showed cats had kidney failure after eating 32 parts per million of cyanuric acid and 32 parts per million of melamine.