The raw material of hemp tofu is green beans. Hemp tofu is a Han Chinese specialty of old Beijing, a commoner's food, and there is a similar food in Anyang, Henan Province, which is called vermicelli lump. This is from the old Beijing powder room, powder room was originally produced in the starch of the powder, the beans on the stone mill a mill, with the mill with the addition of water, at the same time the beans are divided into three things. The top of the fine into a soybean paste, is genuine, used to make starch; top thin into a juice, that is, soybean juice; the middle layer of thick paste stagnant dark green pulp, into the cloth bag heated and boiled, filtered off the water, is hemp tofu.

The general public fried hemp tofu with mutton fat, soy sauce with soybean sprouts or green bean sprouts and potherb mustard to be fried to sticky, gray-green, fried, fried red chili oil splashed on the top that is, red, green, yellow, taste mellow flavor, sour and salty taste, unique flavor.