Jane Chen / Shanghai Daily news

All restaurants claiming their shrimps are from Xuyu County, Jiangsu Province, and cooked with the local recipe must first obtain approval from the hometown which has registered the brand of its shrimps before starting business, today's Youth Daily reported.
On March 3, Xuyu received national brand authority approval for its name-branded shrimps.  It will re-approve its franchised restaurants in Shanghai and will publish the evaluation standards next month, according to local officials. 
Secretary Wang of Xuyu's vice Party Secretary said the government is revising franchising standards and will reexamine the current 87 franchised Xuyu shrimp restaurants in Shanghai.
The standards will mainly involve two areas: one for technical standards to determine whether the shrimps are the Xuyu variety; and the other for quality standards, or the taste of the shrimps.
Xuyu is renowned for shrimps, particularly the hot-tasting shrimps cooked in the traditional recipe with 13 spices.  Many restaurants in Shanghai are selling fake "Xuyu shrimps" to attract gourmands.