Introducing air into the wort to increase the amount of dissolved oxygen.
3
votes
1answer
114 views
When is aeration good and/or bad in homebrewing?
I had thought that the point of using a siphon when moving wort/beer is to prevent agitation and aeration and a ruined beer. So we use the siphon when moving cooled wort to the carboy for ...
9
votes
1answer
310 views
What are the primary causes of Acetaldehyde?
I'm a bit confused about this.
In my own experience, I'm no longer experiencing acetaldehyde flavours in my beer after improving my aeration methods and at the same time starting to use yeast ...
1
vote
3answers
663 views
Can Dried yeast function at a low temperature?
I started my first batch of home brew lager around 24hrs ago I aerarted it and it was at 20 Degrees celcius but does not appear to be fermenting..... I know people say I have to give it time as I read ...
1
vote
1answer
138 views
Aerating bottled apple juice for cider
I understand that disolved oxygen is good for yeast, and aeration is done near the time of pitching in beer making. Does this rule hold true for bottled apple juice as it does for wort? Would apple ...
5
votes
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 ...
8
votes
4answers
547 views
Aerating When Moving from Mash tun to Boil Pot
When transferring from the mash tun to the brew pot, I had set the mash tun about 3 feet above the brew pot and let the wort flow out and fall to the pot. This caused a large amount of bubbles that ...
0
votes
2answers
2k views
Fermentation started, then stopped the next day. Is my yeast dead?
This is my first shot at homebrewing, using Northern Brewer's American Wheat Beer kit which is based on liquid malt extract, Willamette and Cascade hops, and a packet of dry yeast. I brewed and put ...
5
votes
3answers
321 views
Can I aerate again before bottling?
I have a Dunkelweizen from a Northern Brewer all-grain kit that I brewed and pitched 2 weeks ago. I have one problem, I forgot to aerate before I pitched the yeast. I'm concerned that the yeast will ...
3
votes
1answer
241 views
What are the best practices for using a wine degasser to aerate wort for beer?
I have a wine degasser, which is a bit like an egg-beater for a power drill. It aerates wort extremely well but I don't have a good rule of thumb for how to tell when enough is enough.
Should I:
...
4
votes
1answer
112 views
Are there any particular steps to fixing a batch of beer with extra trub / hot-break, or should it settle (as best as possible) on its own?
I made a silly mistake using a wine degasser to aerate my wort. After cooling the wort I aerated in the brew-kettle, with trub/hot-break still present, rather than racking to a carboy before ...
5
votes
1answer
185 views
Should Priming Sugar Solution Have Minimal Oxygen?
When I bottle, I follow the typical step of boiling some water, adding bottling sugar, letting it cool, and adding it to the beer that's done fermenting (but still of course has live yeast floating ...
4
votes
1answer
124 views
Long cooling before pitching — aerate now or later?
This is a follow-up to this question: Long cooling before pitching -- read that for background.
I aerate to add oxygen to my wort by pouring back and forth between buckets. If I wait before ...
2
votes
1answer
211 views
How to reduce head when aerating wort with an aquarium pump
Last night I embarked on a fun adventure to create a 14-16% ABV beer (Dema Goddess Ale), and it calls for aeration via an air pump that you would typically use in an aquarium. Due to the high ...
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 ...
10
votes
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 ...
13
votes
4answers
2k views
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 ...
5
votes
6answers
693 views
Wort aeration on a budget
To aerate my wort I have been using a whisk, but i am worried about contamination. What are other more effective ways to aerate wort without spending too much money?
3
votes
1answer
118 views
Is trapped air in a counterflow chiller really an aeration risk?
I recently bought a Blichmann Therminator counterflow chiller (I know, extravagant, but it is the awesome).
The instructions say to operate it with the hot wort input facing down, so that gravity ...
8
votes
3answers
297 views
Is aeration necessary if you overpitch?
We all know that aeration is necessary for yeast growth. Does it facilitate more than that? If you massively overpitch, on a previous yeast-cake for example, do you need the same amount of dissolved ...
