Homemade kefir: a beginner's guide to kefir grains
Find out what kefir grains are, how to look after them and whether they really survive the stomach. Everything you need to know to make homemade kefir without mistakes.
English · Original discussion in Spanish · Published
Homemade kefir: myths and truths about the 'little critters' that ferment it
Is kefir a colony of bugs you swallow alive? The confusion is more common than it seems. First things first: kefir grains are not insects or larvae, but a symbiotic colony of bacteria and yeasts that can be seen with the naked eye as small gelatinous cauliflower shapes.
Grains that don't die if you feed them
These grains need to feed on lactose or sugars to stay alive. If given milk, they multiply and can last for years. The trick is not letting them dry out or become contaminated. To make homemade kefir, simply add the grains to milk at room temperature, let it ferment for 24 hours and strain. The resulting liquid is the kefir; the grains are reused.
Do the microorganisms survive the stomach?
A recurring question is whether the probiotics in kefir withstand stomach acid. There is no absolute scientific consensus, but many studies indicate that a significant proportion reaches the intestine alive. That said, for those with lactose intolerance or sensitive digestive systems, kefir can cause discomfort. As the saying goes: "for those it suits, it's great; for those it doesn't, it's like a kick in the balls".
In short, homemade kefir is simple, cheap and loaded with probiotics, but it's not for everyone. The best approach is to try it in small amounts and watch how your body reacts.
Related discussions on the forum
Is kefir a colony of bugs you swallow alive? The confusion is more common than it seems. First things first: kefir grains are not insects or larvae, but a symbiotic colony of bacteria and yeasts that can be seen with the naked eye as small gelatinous cauliflower shapes.
Grains that don't die if you feed them
These grains need to feed on lactose or sugars to stay alive. If given milk, they multiply and can last for years. The trick is not letting them dry out or become contaminated. To make homemade kefir, simply add the grains to milk at room temperature, let it ferment for 24 hours and strain. The resulting liquid is the kefir; the grains are reused.
Do the microorganisms survive the stomach?
A recurring question is whether the probiotics in kefir withstand stomach acid. There is no absolute scientific consensus, but many studies indicate that a significant proportion reaches the intestine alive. That said, for those with lactose intolerance or sensitive digestive systems, kefir can cause discomfort. As the saying goes: "for those it suits, it's great; for those it doesn't, it's like a kick in the balls".
In short, homemade kefir is simple, cheap and loaded with probiotics, but it's not for everyone. The best approach is to try it in small amounts and watch how your body reacts.
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Summary of a discussion on Burbuja.info - Foro de economía, actualidad y política., translated from Spanish and reviewed before publication. Read the full discussion (32 replies).
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