I make goat milk Kefir everyday for the last 6 years. I have been using the same grains I got from a friend who has kept them going for many years. I like to second ferment it after pouring off the Kefir into a jar and using a piece of date or thin strip of lemon peel, leave it on the counter for a couple more hours. Chill. It is thicker (not like yogurt) creamy and slightly fizzy. It's called the champagne of yogurt! Totally delicious and mild. Enjoy!