Dissolve 1 starter packet in a small amount of the cooled milk. ... let stand in a warm place or place in a Yogurt Maker until curds form (about 6 - 10 hours at  42 - 44 C or approx. 108 F) Ask for instuction with order. Make your own natural yoghurt using what you already have at home without spending money on extra equipment. The starters itselves are grown on a milk base, but are centrifuged afterwards so that only the cells are harvested. On allergens we have to declare milk, becourse we can not garantie that no traces of milk remain on the cell surface.