Hanoi food safety authorities said Friday that tests on some street foods sold in the city were negative for addictive substances.
They did the tests following rumors picked up by a news website that food vendors add drugs to hook customers.
Tests of 15 different samples, including sausages, grilled meat rolls, and fermented pork rolls, found no addictive substance like morphine or codeine, the main ingredients in marijuana, a report from the Hanoi Food Safety Department said.
Doi Song & Phap Luat (Life & Law) website had quoted an unnamed food-additives trader as saying that most street foods in the city contained small amounts of marijuana extract.
“I have not myself seen their mixing process, but I am sure there is a small amount of marijuana in the Chinese spices added to the foods, which are very popular,” he said without explaining how he knew.
The rumors sparked public anxiety, especially among young people who are loyal fans of the cheap and delicious street foods.
Authorities said they would continue to keep an eye on and test street foods in major cities and tourist spots, adding that more reports on food safety would be made public.