Experts warn the popular fruit may not be completely risk-free

Some Shanghai locals have been so worried about food safety that they are ordering organic watermelons, while some experts warn that the food is not necessarily risk-free.

Shanghai Nonghao Farmers' Market, one of the most popular organic-food markets in Shanghai, said on its micro blog on Feb 27 that the open-air-grown melons, free of pesticides and chemical fertilizers, can be ordered in advance for 10 yuan ($1.60) a kg, almost twice the price of ordinary melons sold in the city every summer. Customers must book at least 50 kg per order.