WantChinaTimes [Taiwan]
27 December 2013
Staff Reporter
An urban myth that
hair can be used to make soy sauce has led many in China to buy discarded hair
from barber shops at low prices, reports the People's Daily. […]
A food safety
expert surnamed Shi told the paper that is indeed true that hair can be
fermented to make soy sauce. However, Shi said this is prohibited as hair can
contain excessive amounts of heavy metals. "This existed years ago but is
rare now. Some small factories still do it illegally," Shi added.