No. The kefir stuff at the store isn't really the same as real kefir. To make the store stuff they just use specific bacteria. Real kefir has to be make from kefir grains which kind of look like spongy cauliflower. Off white and chewy. You just strain them out and add them to fresh milk. You can order grains off amazon. You won't get much, but it grows pretty quick and you'll have enough in a few weeks to make it quickly.