Of 48 samples of Chinese satay collected randomly at markets in Hanoi, eight were discovered to contain a high quantity of preservatives, said health authorities.
Following revelations made by the Chinese media, who stated that their satay might contain a toxic cancer-causing substance, the Vietnam Food Administration and the Ministry of Health have investigated markets in Hanoi and the Northern provinces.
Inspectors arbitrarily collected 48 food samples of the Chinese satay (or pot-au-feu spices) for testing.
Test results show that eight samples contain a quantity of preservatives more than the government allows. However, it has not found any heavy metals or banned coloring substances in the spices.
Despite the test results, health authorities have warned customers not to buy these foods without a clear indication of their origin.