This extra liquid is simply whey being 'expressed' from the yogurt and is part of a natural process. Commercial chilled yogurts may contain thickeners and stabilisers to absorb the expressed whey, but we prefer to keep our yogurt free from additives. Simply stir any whey back into the yogurt as it’s highly nutritious, or you can pour the whey off if you prefer thicker yogurt. You can even add the whey to your smoothie for an extra protein boost.