I adde coffee grinds to a 8.3% ris in secondary. I ground them finely, but did not do the vodka soak that some people use and added straight to secondary after a month. Three days later and now there's an oil like substance and a small amount of bubbles.
Is the oil an infection or from the coffee grinds? Could the bubbles be from yeast fermenting the small amount of sugars in the coffee grinds, or is it a lactobacillus or Brett infection. If I recall lactic acid fermentation does not produce co2 Only ethanol fermentation does.
I've had an infection before both lacto and Brett but this does not definitively seem to be a pellicle.
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Is the oil an infection or from the coffee grinds? Could the bubbles be from yeast fermenting the small amount of sugars in the coffee grinds, or is it a lactobacillus or Brett infection. If I recall lactic acid fermentation does not produce co2 Only ethanol fermentation does.
I've had an infection before both lacto and Brett but this does not definitively seem to be a pellicle.
Sent from my iPhone using Home Brew