I've not seen them there, but you can make kefir at home... If you can't find a supplier, try looking for the funky kitchen (book). I met the creator of it last year. You can find it on Amazon... Or Google. I believe she has an online program... Hope this alternative helps.
I haven't seen them. They probably don't, since real Kefir doesn't meet the USDA 'definition' of Kefir.
I do not know. Checj their website. They respond in real time.
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