'Tofu Beauty' ferments fervent following

Shi Qingxiang is known to friends and customers as "Tofu Beauty" - not because of her looks, but because she is a master tofu maker.

Tofu, one of the most common and least expensive foods in China, is a key source of extra income for many people in Hunan province.

Shi, 42, runs a tofu factory in Pinglang village, home to the Miao ethnic group for hundreds of years. The unique quality of the region's mountain spring water and locally grown soybeans have given Pinglang tofu widespread recognition.