Introducing pure oxygen into the wort to increase the level of dissolved oxygen. More effective than aeration.
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How to Properly Oxygenate Wort
How much oxygen do I need to put into my wort?
I've heard that homebrewers need to aerate with an oxygen stone and either aquarium pumps or oxygen. Is this true, or is shaking my carboy enough to ...
12
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1answer
727 views
Do Oxygen Absorbing Caps Make Any Difference
So, I was looking to refill my supply of bottle caps and ran across "Oxygen Absorbing" bottle caps. The implication is that their absorbency will reduce oxidation in the bottled beer. If you're ...
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5answers
861 views
Is it necessary to aerate wort when pitching onto an existing yeast cake?
To my knowledge, aeration provides oxygen so that the yeast can reproduce before fermentation. If you're pitching onto an existing yeast cake, there should theoretically be enough yeast already to ...
7
votes
1answer
467 views
How can you use an oaken barrel for secondary fermentation?
I may be able to get my hands on a oaken barrel that I'd love to age a Scottish ale in. What can I do to sanitize it adequately and minimize oxygen exposure?
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votes
2answers
257 views
Can Olive Oil REPLACE oxygenating wort
Apparently, New Belgium is doing this. Also, for a typical five gallon homebrew batch, it is said that if you DIPPED A PIN in olive oil, shook it off, it would still contain hundreds of times the ...
5
votes
2answers
243 views
Why would aeration cause diacetyl
My BJCP Course states that (too) late aeration can cause diacetyl. My understanding is that diacetyl is produced by yeast during the first phase of fermentation. How could too much oxygen in a ...
5
votes
2answers
364 views
How to measure wort oxygenation
As a follow-up to a couple of other questions:
How to Properly Oxygenate Wort
Wort aeration on a budget
How do you measure oxygenation of wort? What methods are available for a beginner brewer ...
5
votes
1answer
63 views
How long after bottling will the effects of oxygenation become apparent?
I think it is well understood in the brewing community that oxygen absorbing caps exist and are readily available. I don't keep any on-hand since my brews tend to be consumed rather quickly and are ...
5
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2answers
166 views
oxygen and yeast pitching rates
Many online references, such as BYO, mention that oxygen is needed by yeast to reproduce, and that a wort with low dissolved oxygen levels will have longer lag times and less attenuation.
This might ...
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6answers
453 views
Aerating a 1.10 OG beer once its in the secondary
I would like to start off by saying thank you to all who answer these questions. I have been brewing for about a year now and while I have not asked a question before, this is only attributed to ...
3
votes
2answers
298 views
Oxygenating wort before boil
I've heard there are negative effects of oxygenating wort before a boil. I don't lauter right into my boil kettle, but just dump the wort into it when I hit my target volume. There's a lot of ...
3
votes
2answers
199 views
What are good ways to reduce oxygen after racking a beer?
I haven't had any problems with homebrews going stale, but I'm curious about what people do to minimize introducing oxygen in later steps of the brewing process. If you have a closed brewing system, ...
2
votes
3answers
504 views
What is causing a bad flavor after cold conditioning?
I've had something happen to a couple batches and can't figure out what's going on. What happens is a major flavor change after the first two weeks of primary, but for the worse. Normally my beers ...
2
votes
1answer
383 views
Is leaving some cider in the primary bad?
When bottling my cider (FG 1.000) I ran out of bottles and saw this as an opportunity to flavour the remaining third and try racking.
I added some boiled cinnamon and clove then left it for a day ...
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vote
2answers
93 views
Cure for Oxygenation?
I was siphoning beer to a secondary fermentation vessel so that I could reuse the "primary" bucket. A steady stream of bubbles inside the cane part of the autosiphon should have set off alarm bells ...
