I would just check craigslist in your area first. I have gotten grains this way, sometimes for free. I would also check for kombucha also. Just click on for sale and search all catagories at once. Good luck.
This list purports to be from March 2012: http://www.torontoadvisors.com/Kefir/kefir-list.php
Please check our website, www.buy-kefir.co.uk. The Kefir Company is a company that specializes in selling Kefir products online, which are for personal use. With our high quality Starter Cultures you can make up to 100 liters of Kefir.
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Simply enter the code during the checkout process and your sub-total will decrease by 10%. This code is valid until the 9th of May 2012.
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The Kefir Company.
I sell them, I'm north of Guelph, Ontario just outside of Arthur. I can dehydrate them and mail them too. They take about 5-7 days to rehydrate before you can use them. Great quality and grown in high quality full fat raw milk. Check kijiji listing in guelph, search KEFIR. Thanks!
Kefir grains in Ohio 4 Answers