Lianshui one thousand since the Western Han Dynasty King of Huainan, Liu Faming tofu after one thousand production method will spread to the northern Jiangsu area. Lianshui thousand using locally produced soybeans (Huaidou 1) processing. Huaidou 1 by the Huaiyin Institute of Agricultural Sciences cultivation, very suitable for growing in alkaline soils such Lianshui in. It is the potential emergence of strong, steady growth, the larger the blade, oval, antiviral, lodging. Sowing to harvest 90 days to 100 days per plant pod 30 to 32, long beans per pod 3 ~ 4, 100 seeds weighing 50 grams to 55 grams. Zhang one thousand names tofu skin, also known as "blinds", its appearance as white as jade, thin as paper, such as tough cloth, such as its taste fragrant mushroom, is Lianshui local products, its production techniques long history, daily life is very fond of beans food products. Lianshui one thousand endemic use of soybeans ground into a paste, the pot boiling, point halides, with gauze repression. Point halide is one thousand key link in the production process, a halogen-one thousand direct impact on the quality and taste. Lianshui thousand halogen using nitrate refined into halogen by the local saline smoke, unlike other soy plaster used in the production process, and therefore made out of one thousand fineness fresh, delicate, high toughness, good taste, has become near and far famous soy is a must. Lianshui thousand rich in protein, vitamins, trace elements, lecithin, and a variety of minerals, thousand each containing 100 grams of vitamin B120 mg to 25 mg of vitamin B21 mg to 2 mg of vitamin E16 mg to 18 mg, but also rich niacin, folic acid, calcium, magnesium, iron, zinc and potassium. Lianshui thousand suitable physical weakness, malnutrition, qi and blood loss, diabetes and inadequate postpartum milk for human consumption, in particular the most suitable for the elderly. Lianshui one thousand with the prevention of osteoporosis, hardening of the arteries, cardiovascular disease, cardiac care and other effects, won the people's favorite. Lianshui one thousand geographical indication trademarks.