Like tofu, soya milk is made from an extract of soya beans, one of the world's most nutritious foods.
It is free of lactose and cholesterol and can be helpful for people on restricted diets, but as it has a distinct vegetal flavour some find unpleasant (at least at first), you need to try several brands to see which one you prefer.
Soya milk is available fresh chilled and packed in UHT cartons. Some varieties are sweetened with apple juice, others are unsweetened and/or enriched with calcium.
Soya milk can be used in place of cows' milk in drinks and some forms of cooking, however the results produced by different brands vary. It can curdle if added to very hot mixtures.