Soy milk (also spelled soymilk) is a plant based drink produced by soaking dried soybeans and grinding them in water.

A traditional staple of East Asian cuisine, soy milk is a stable emulsion of oil, water and protein. Soy milk can be produced at home using a soy milk machine. It is often used as a substitute for dairy milk.

Soy milk (doujiang) originated in China, probably during the early Han dynasty (202 BCE to 9 CE), after the rotary millstone was introduced and became widely used to grind wheat. It did not become widely used in China until the 1800s, when it was discovered that extended heating made it taste better and easier to digest.

Soy milk was introduced to the US market by Vitasoy in 1979; the first domestic manufacturer of soy milk was Sunrich Food Group, which introduced its products in 1985. Read More