I was propogating a dry yeast starter for pitch today when I had a major mechanical failure on my rig. I need to store the starter until I can get it fixed. Right now it has a foam stopper in the top. I've put it in the fridge but do I need to seal it or can I leave it with the foam stopper?
Lot of people keep acid-washed yeast in the fridge, so you are probably OK for quite a while. I'd put a stopper in there, though. Or saran wrap. Refrigerators are actually dehumidifiers.
Me, I'd decant and freeze with 10% glycerine (Walmart). Then get it going again when I got my equipment fixed.
What's the best way to store a starter in flask?
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