Bitter tofu. Established in 1998, Shanghai Mei Qing Green Food Group is a large-scale comprehensive food group integrating food research and development, modern agriculture, food processing, cold chain logistics and food distribution, and has a complete food industry chain. Mei Qing bittern tofu is delicious. Mei Qing old bean curd with bittern is specially made from some bittern, with good taste, high nutrition and simple production. It can be used for stewing soup, adding some vegetables appropriately, or adding them when cooking other foods. It's delicious, full of water and very delicious.