Ferment bag that makes it possible to make tasty, creative, protein-rich and active ferments at home plain soy and vanilla yogurts. In order to ensure the success of homemade soy yogurts, these ferments must be combined with plain soy milk (no Ca+ added) or vanilla. 1 bag corresponds to 500 ml of soy drink and works with the yogurt maker and the Living Food Box Only compatible with plain soy and vanilla soy drinks