I have done three lactic starters using the grain technique. I am 2 for 3 so far. The bad one was caused by not putting enough to co2 in solution to drive out the O2. I never saw bubbling in my starters but i did smell a yogurt like odor after 8 - 12 hours. The bad one smelled like bile or vomit and after listen to the chad yakobsen show on the bn, I now know it was butric acid.
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