Is yogurt a liquid or solid?
Yoghurt or yogurt, less commonly yoghourt or yogourt, is a dairy product produced by bacterial fermentation of milk. Fermentation of the milk sugar (lactose) produces lactic acid, which acts on milk protein to give yoghurt its texture and its characteristic tang. Soy yogurt, a dairy-yogurt alternative, is made from soy milk. To offset its natural sourness, yoghurt can be sold sweetened, flavored, or in containers with fruit or fruit jam on the bottom. If the fruit has been stirred into the yoghurt before purchase, it is commonly referred to as Swiss-style. Most yoghurts in the United States have added pectin or gelatin. Like cream cheese, some specialty yoghurt have a layer of fermented fat at the top. Fruit jam is used instead of raw fruit pieces in fruit yoghurts to allow storage for weeks. “Strained” yoghurt is the concentrated residue (described as a sort of “yoghurt cheese”) produced by filtering plain yoghurt that is without flavorings, gelatin, pectin, or