MasterFoods Professional Gluten Free Soy Sauce features an authentic oriental recipe great for boosting flavour while cooking or at the table for an added touch of authentic flavour to your menu. - Australian Made - Gluten Free - No Artificial Flavours. MasterFoods Professional Gluten Free Soy Sauce is perfect to marinate and tenderise meat, as well as a dipping sauce for delicious sushi or in any variety of creative stir-fries.