There is a distinction between north and south tofu, the main difference being the different materials used to order the tofu. South tofu with gypsum point system, because the solidified tofu flower with high water content and tender texture, moisture content in about 90%; North tofu with brine or sour paste point system, solidified tofu flower with less water content, the texture of the South tofu is older, the moisture content of about 85%, but due to less water content, so the tofu flavor is more intense, tougher, and also easier to cook. Tofu is a traditional Chinese food that is flavorful and nourishing.