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That is not how it works, you literally use the yeast that is in the air to create the "starter".
by sorokod 5y ago
That is not how it works, you literally use the yeast that is in the air to create the "starter".
- hvidgaard 5y agoIt's usually on the grain and not from the air. It's where the sour part comes from too, it's not uncommon to use raw unmalted grain to innoculate beer wort to create a sour beer.