Homebrewing Stack Exchange
Homebrewing Stack Exchange

Questions tagged [yeast]

Yeasts are micro-organisms used in brewing to produce alcohol during the process of fermentation.

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How do I keep yeast from a strain that I've bought?

I'd like to stop buying yeast all the time, especially when I use the same strain repeatedly. This is especially a problem when it comes to seasonal strains. I'd like to brew with WLP351 Bavarian Weizen Yeast whenever I'd like, but it's only…
chrislarson
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Why do you aerate wort at first and try to keep oxygen out later?

Why should you aerate the wort before pitching yeast but then try to avoid allowing oxygen into it later in the process? What is going on with the yeast that makes oxygen good at first but bad later?
Joe Phillips
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Dry yeast vs wet yeast

I've always thought it to be common knowledge that wet yeast is better than dry yeast for home-brewing. This was confirmed by Sam Calagione at his Authors at Google talk where he suggested that using wet yeast is the single best way for the…
WayneTheTrain
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How do new yeast strains happen?

Rogue and Papazian have their own yeast strains (PacMan and Cry Havoc, respectively). Do you know how they got there? Lots of trial and error? Pitching multiple strains? Let's say I pitch a bunch of different strains into a batch and stumble on…
Rich Armstrong
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Baking yeast for brewing?

Has anyone ever used the ubiquitous Flesichmann's baking yeast for brewing? Is there a fermented beverage style for which it works particularly well?
G__
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What happens when you push a yeast near its alcohol tolerance?

I'm brewing with Wyeast's West Yorkshire Ale yeast, which has a documented alcohol tolerance of 9%. I'd like to push that boundary by brewing an 8.5% ale and wonder what to expect. Common sense says that this constitutes stressing the yeast, so one…
Rich Armstrong
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What exactly is yeast-bite?

So I cracked open a nearly year-old bottle of oatmeal porter last night and it tasted a bit "yeasty". In fact, much more yeasty than I remember from a few months ago. I was fairly careful in my pouring so I don't think I drank much in the way of…
Poshpaws
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How do you choose a yeast?

What characteristics do you look for in a yeast to pair with your recipe? Is there a common reference?
tbeseda
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What are the advantages of Dry vs Liquid yeast?

Pretty straight-forward- what're the benefits and drawbacks of dry or liquid yeast?
Fishtoaster
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Yeast , dead or alive?

G'day , how long after the fermentation has finished does the yeast live ? I am curious because not only is it the cost of the yeast but if you find a particular strain and you like the taste ( providing that all ingredients are constant ) if you…
Dan
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What is necessary to keep yeast happy and healthy?

If you take left over yeast from a wash and dump it in new mash, and repeat, eventually the yeast stop reproducing due to extensive budding scars. So after 4-12 batches people buy new yeast... if not right away. But I was just thinking, why is that…
user273872
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Can I use local yeast to brew beer?

I am from Kathmandu, Nepal and I was wondering if I could use local yeast to brew beer. The yeast I want to use is generally used to make local rice beer called chhaang.
Ban
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What is the best yeast to ferment beer at higher temperatures?

With all the hot weather we have been having in my part of the world recently, what would be the best yeast to use for fermenting beer at (say) 20C or 22C. Obviously I am not making a lager - but aim to produce an IPA or a English bitter session…
GrainMother
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Wine yeast for beer?

Has anyone ever used wine yeast for a batch of beer or a beer yeast for a batch of wine? I brew beer and my neighbor makes wine and we have been toying with the idea of trying to make a batch of our respected libations with the others yeast.…
BeerMe
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Low original and final gravity

My roommate and I brewed our first batch of beer, a Rogue Dead Guy clone (with some substitutions). The brew has finished secondary fermentation and our hydrometer reads 1.007 (temperature-adjusted). With an OG of 1.033 This gives our beer an ABV of…
Joshua Galecki
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