It was more of a christy-o-twisty topic than an old computing one but one of my more successful culinary ventures (let's not speak of the lasagna debacle) has been an unsuccessful attempt to liberate some khefir. So far as I understand, khefir is an heirloom SCOBY drink. Crystals of the living SCOBY reproduce when fed more milk. In New Zealand, supermarkets sell a thin yoghurt drink as khefir, with no crystals in it, but presumably the Fourteen Strains Of Probiotic were extracted from or are also present in the khefir yeast-bacteria complex (SCOBY). Actually, I was looking for a way to make powdered milk palatable. At least what we have here has a weird flavor not present in milk. My approach was to just mix up some powdered milk and keep feeding it to the depleted bottle of khefir probiotic yoghurt drink, which just lives at room temperature on a shelf. At first it seemed kind of inactive, so I tried giving it some inspiration by pouring in a little of -that thin liquid you get on the top of soymilk turned tofu -ground coffee that I innoculated with wild Coprosma robusta -(presumably sterile) brown sugar The brown sugar at least made it sparking, which I believe khefir is normally. However I never developed crystal complexes. Khefir crystals are meant to have a common ancestry since they reproduce, but I read an article where some Taiwanese scientists just tried introducing the beasts present in khefir to each other, and they found it was common for (new) SCOBY complexes to emerge. But I have had no such luck. On the other hand, it now definitely makes a lot of fresh yoghurt which I now keep two bottles = 4 litres of. The flavor and texture are very different to what I originally got from the supermarket, much better basically. And after about 24 hours, there is no trace of the "milk powder" flavor. So I consider this a great victory of creating a living milk/yoghurt culture. Actually, the two bottles have clearly diverged. One must have got a maybe cheese forming culture in it from somewhere. It's more savory, and glumpy. I think it would be a good candidate for cottage cheese. Whereas the other stays a bit thinner longer. So while I am not claiming to reach the fabled khefir levels of culture, I definitely report success at this approach: - Get a "probiotic" from the supermarket - Re-feed it with reconstituted milk powder - It doesn't want a fridge - Keep going And that it was resilient to me introducing some strange cultures to it.