"The Chinese government has shown an unusually high level of concern as a result of a bold media exposure towards a scandal in which human hair was used to make soy sauce.

China Central Television first raised public worries over the quality of domestic soy sauce by uncovering a substandard workshop in central China's Hubei Province, where piles of waste human hair were found. The hairs were treated in special containers to distill amino acid, the most common substance contained in soybean sauce.

Human hair is rich in protein content, just like soybean, wheat and bran, the conventional and legally accepted raw ingredients for the production of soy sauce.

By producing soy sauce from such raw materials, the producers were said able to cut costs by half. Workers employed at the plants, however, never bought soy sauce marked as "blended" on the packaging, because that usually meant that human hair was the basic material in the sauce."