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["Kefir grains are live, active cultures that look like little pieces of cottage cheese or tiny cauliflower (see photo above). You can buy them online or get some from a friend if you're lucky enough to know anyone who has some. You can also try to finding a Facebook fermentation group (I belong to one called ""Boston Culture Sharing"") to see if people in your area are willing to giving away any for free. Craig's list is a good resource, too; I've sold quite a few starters (sourdough, kombucha, kefir, etc.) there. If you just want to buy online, I suggest either Cultures for Health or the Kefir Lady, which is where I got my grains years ago.", "When you get the grains-you'll probably have about teaspoon or so-place them in a strainer and rinse with filtered water.", "Put the rinsed grains in a glass jar and cover with about one cup of pasteurized milk-I use whole, organic, pasteurized milk. DO NOT use ultra-pasteurized milk. It is too ""dead"" for the grains to ferment.", "Cover the jar with a cloth and secure with a rubberband. Allow the jar to sit at room temperature for about 24 hours; you can stir it once or twice if you like but it's not necessary. The milk will be undergoing fermentation during this time, a safe process that can only happen at room temperature, not in the fridge. Have a little faith in the safety of this-kefir dates back centuries! (Legend has it that Mohammed gave kefir grains to the Orthodox people and taught them how to make kefir. It is still widely consumed today throughout Eastern Europe and Asia.)", "You'll know the kefir is done when the milk doesn't swish around when you move the jar. It will seem thick toward the top, and you may also see small pockets of whey (clear yellow liquid) start to separate out-that's a tell-tale sign it's ready (see first photo in series above). If you see more whey than milk, you have let it ferment a little too long. It is totally safe to consume, but will just be a bit more tangy.", "Place a strainer over a large bowl and dump the contents into it. The resulting (strained) liquid is your kefir, and the grains in the strainer are now ready to be used again. Place them back in the (rinsed out) jar, cover with fresh milk, and repeat the process.", "Use the strained kefir right away, or refrigerate until needed. It lasts for weeks, if not longer, in the fridge (though it does get more tangy over time, as fermentation slows, but doesn't stop completely).", "For smoothies: Blend kefir + whatever fruit/veg you like in a blender or food processor. I find that the best smoothies always have at least some frozen fruit in them, which makes everything extra thick and creamy once blended. My favorite is 1 frozen banana + 3/4 cup wild frozen blueberries + 2 cups kefir (and sometimes a scoop of Green Superfood powder, available on Amazon). If the mixture looks too thick, just dilute with milk, water, or, my favorite, coconut water.", "Consume smoothies immediately, or within a few hours at most. Real kefir is so alive that it will begin feasting on the sugars in the the fruit pretty quickly, so after a few hours, most of the smoothie's sweetness will be gone. I always drink immediately.", "Some Final Notes: