Originally posted by Jdizzle1 Not "could be". "Is". Depends on if what you’re talking about is actually a pellicle, though, and not krausen. Originally posted by Jdizzle1 The head space is not your problem. It is the oxygen permeability of your fermenter. If you brew the extra wort, the fermentation that will ensue by adding it to your beer will help get rid of any oxygen in solution and in the fermenter, but you’ve got to do your best to keep your permeability as low as you can. |
The brew is already in a Glass carboy w/ cork and airlock. I just notice a scum starting to form on the surface over the past few days. Getting bigger. Would adding the new batch of wort start fermentation again? |
Originally posted by Jdizzle1 This is, very probably, not a pellicle and just residual fermentation occurring by your microbes. You’ll be just fine. Originally posted by Jdizzle1 Yes. |
How long should it normally take a pellicle to form if 4-5 weeks is too soon. |
It depends a bit on the vessel, but ideally you want to see it form as late as possible. I have a strong (over 11%) dark sour that’s now about 3 months old and doesn’t have a pellicle yet. |
Originally posted by GarethYoung Exactly. If I don’t rack the beer after primary fermentation has ceased, I won’t get one until one forms in the bottle. |
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