Sour pulp point pulp can be 1:10 rice vinegar and water preparation, or with 1:30 vinegar and water preparation to do the lead, and later point pulp when the soybean brain out of the brine point tofu, this brine can be used repeatedly into the tank. Continuously add new brine, summer 3 to 5 days to clean a brine tank, change a new brine, brine point pulp with the best temperature of 80 degrees.

What is sour pulp, is the production of tofu after the leaching of juice, commonly known as slurry water; the temperature is suitable for the case, by its own lactic acid bacteria role and become acidic, the industry known as sour pulp. The use of lactic acid contained in the production of tofu, is part of the region's favorite, to avoid the pollution of chemicals, taste is also very good, and reduce the coldness of the tofu itself, but also increase the use of beneficial bacteria, enhance the nutritional value of tofu, so also known as green food, can be said to be risk-free food. Sour pulp general thing the day before the acidification of the pulp water, the next day after the use of the cycle, the acid value of excessive can not be used, a little longer will produce stray bacteria, and produce a strange smell (the people called the nest stink), the production of soybean brain tofu no one to buy, because the connoisseur a look at the appearance of the know what is going on. Acid water can be put for three or four days, long time it is best not to, for fear of breeding bacteria, each time you do tofu can save a bottle or two of acid water, recycling.

Soaking time

Generally speaking, winter soaking 12 - 15 hours; spring and fall soaking 8 - 9 hours; summer soaking 3 - 4 hours. (Note: the specific soaking time is related to the local climate and temperature) 1 catty dry beans out of 10 pounds of pulp or so, depending on the local taste the less the older, the more the more tender.

Temperature requirements: boil cool to 80 - 85 degrees or so the best

point pulp method: the acid pulp water and soybean milk mixed evenly, the first stainless steel ladle constantly pulling the soybean milk, so that the soybean milk up and down the rotating, and then put the acid pulp water on the front of the ladybird, so that the acid pulp water slowly flow into the soybean milk, to be thickened soybean milk, there are Small particles of bean flowers stop brine and lift the dipper.

Note: In general, the higher the concentration of soybean milk, the more the amount of acid syrup water, the lower the less.

Squatting brain

Points of good pulp insulation state squatting 15 - 20 minutes after the surface of the brain with a hand touching the hand, the barrel wall is not white paddle, or scoop a small piece of digging without white paddle.