Wendy Zhang/ Shanghai Daily news

The Shanghai Food and Drug Administrative Bureau announced yesterday that the city is keeping a close eye on food from Hunan Province containing the carcinogen "Sudan I." No such products have been found in the city to date.
The Hunan quality-supervision department recently found that bean products and red peppers produced by Changsha Tianyun Food Trade Co Ltd. contain Sudan I.
The chili source sold in Shanghai is mainly from Hunan, Guizhou and Jiangxi Province, so it is possible for Sudan I-tainted products to enter the city. Citizens should be alert when buying such goods and report suspected products to the appropriate departments, the Shanghai Food and Drug Administrative Bureau warned.
Sudan I-tainted products, if found in the city, will be recalled within 72 hours.