1, ingredients
5 kilograms of soybeans, gypsum 0.22 kilograms, 40 to 45 kilograms of water.
2, yield
Each 50 kilograms of soybeans produced 22 plates of old tofu.
3, method
(1) point pulp (solidification, point brain):
Take two thirds of the boiled soybean milk and put it in the tofu flower tank, and the remaining one third of it is put in the hot pulp poke, ready for brewing. Ground gypsum emulsion in the soybean paste bucket. When the temperature of soybean milk at 75 ℃, one-third of the cooked soybean milk and the bucket of gypsum emulsion at the same time poured into two-thirds of the soybean milk tofu flower tank, so that the soybean milk in the tank up and down evenly stirred. Then let stand for 3 minutes, the soybean milk is initially solidified as tofu flower.
(2) expansion of pulp (squatting brain, flowers):
point of pulp after the initial solidification of the tofu flower, should continue to rest in the tank for 15 to 20 minutes, so that the soy protein further solidification of good. In winter, due to low temperatures, the expansion of pulp should also be added to keep warm. By expanding the pulp after the tofu flower, in the pouring of toughness, the finished product water retention is also better.
(3) spread cloth:
Take the old tofu box set 1, placed flat, then add tender tofu box set 1. Inside the box set, spread the tofu cloth, so that it is close to the inner wall of the box set, the bottom of the 4 bottom corners, the 4 cloth corners should be exposed outside the four sides of the set, the four sides of the cloth in the box set along the corners of the mouth.
(4) pouring:
To make the tofu to achieve a certain degree of oldness, it must be poured before the part of the water contained in the tofu flower first excluded, exclude the water method is to use a bamboo sword will be in the tank of tofu flower into 6-8 cm square square, so that a part of the water - points leaked out. Then use a large copper spoon to scoop the tofu flower into the box set to two box set high along the mouth, and then the corners of the tofu wrap cloth turned up to cover the tofu flower, let it naturally drain about 1 hour.
(5) finishing (bag collection):
The natural draining of tofu flower, gradually to the bottom of the sinking, but due to the inconsistency of the drainage, there will be uneven heights. At this time should be uncovered in the tofu above the bag cloth, with a small copper spoon to scoop the surface of the tofu until basically flat. Then from the four sides of the box cover, according to the side of the cloth in order to tighten the tofu wrapping cloth to cover the good flat. After the cloth is tightened, the whole block of tofu will be wrapped in the tofu bag. At this point, the tofu has been basically shaped, you can remove the old tofu box set on the ring.
(6) pressing:
In order to make the tofu further drainage to achieve the specified quality, also need to be after finishing, with the tofu pressure tofu pressing method, pressing about 30 minutes. After pressing, the tofu will form a skin around it, making the product firm and elastic.
4, tools
Mainly tofu box cover, box cover must be kept clean, every day to use bamboo wire washing broom scrubbing, so that the box cover inside and outside, up and down, the four corners of the box cover all clean, in order to reduce the reproduction of microorganisms, which affects the quality of the finished product. Tofu package cloth should be scrubbed every day, about a week of use of caustic soda soaking boil cleaning, the protein adhering to the cloth Sin, so that the eye of the cloth does not affect the use of the blockage