"Soya milk" refers to a plant-based beverage made from soybeans. It is a milky-like drink that is a popular alternative to cow's milk, typically used by people who may be lactose intolerant or avoid dairy products. Full definition
I've tried it with soya milk in the past and it was fine — the milk had to be warmer I seem to remember for it to set and the culture had to be milk yogurt (I think). (davidlebovitz.com)
Can I use soya milk as a dairy free alternative? (greenthickies.com)
I drink a shake of oatmeal blended with chia seeds with soya milk for lunch everyday with some vanilla extract for flavour! (nowloss.com)