What is the name of the tool for grinding soybean milk?

The tool for grinding soybean milk is called a stone mill. Usually made of two round stones. The grinding surface is two layers flat, and the junction of the two layers is textured. Particles enter the middle of the two layers from the upper hole, move outward along the grain, and are ground to form powder when rolling through the two layers. The diameter of the mill is about 80 cm, and a person or a donkey can pull it. The small mill is less than 40 cm in diameter and can be placed in a basket and used to pull Chili noodles by hand.

Stone mill type:

1, traditional chip stone mill: 1968, a stone mill about 2 100 years ago was unearthed from Mancheng Han Tomb in Baoding City, Hebei Province. It is a copper-stone compound mill consisting of a stone mill and a copper funnel. This is the earliest stone mill discovered in China so far.

2. Modern chip stone mill: The modern chip stone mill retains the grinding part of the traditional stone mill, that is, two cylindrical rocks, and changes the traditional power generation device, from the original donkey to the motor, and adds a conveying device and a cleaning device. Compared with the traditional stone mill, the modern stone mill saves labor, reduces the amount of labor and improves the output of the stone mill.