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

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At what point can a beer be called organic?

A lot of the homebrew I make is made with organic ingredients - organic grain and hops. However, I have never come across organic yeast (!?) or irish moss. Can I rightly call this beer organic, or ...
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533 views

Smack Pack and Pitching Time

So I completed my first batch of homebrew this morning, but I forgot one potentially (okay, not potentially, definitely) important aspect of the whole process: the yeast. I didn't forget it, per se, ...
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5answers
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Long cooling before pitching

Summer brewing means warmer tap water, which means that my immersion chiller can only cool the wort to about 75 degrees. I typically cool the wort to 68 degrees before pitching. I have a ...
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4answers
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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 ...
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2answers
586 views

Using Granular Yeast in a Lager

Will dry yeast do any good when brewing a lager or is it necessary that you use a liquid one? I am talking about making some kind of starter with the yeast, not just pitching it into the fermenter. ...
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3answers
517 views

wild yeast taking over?

I brewed a belgian triple last week. I had a starter going using white labs trapist yeast but it didn't take off, must have been a bad vial. In the meantime the batch was sitting in the carboy ...
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2answers
419 views

Is re-pitching essential after cold crashing?

If I'm cold crashing a batch to clear it up, is it essential to re-pitch when bottling or will there be sufficient residual yeast for carbonation?
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720 views

Choosing a yeast for ginger beer

I'm doing some experiments with ginger beer (this is a alcoholic beer, not a soda). I'm use brown sugar as the sugar source for now, but may experiment with other sugars including malt as I go along. ...
8
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3answers
978 views

What would happen if I used a yeast meant for white wine to brew red wine or vice versa?

I was buying winemaking yeast and wondered - what exactly would happen if I used the stuff meant for red wines for white or the other way around? Would it be bad? Would it work at all? Would it just ...
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3answers
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How many times can yeast be reused?

A good yeast sample can be retrieved, stored & reused regularly across brews. Is there a limit to the number of generations a sample can last? I've heard that after so many generations a strain ...
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2answers
127 views

Old Brown “sour belgian”

I have an Belgian sour that has been in it's secondary for 18 months. With a terminal gravity of 1010 for over the last year, what is the best way to bottle condition this beer? New yeast? Blend?
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2answers
327 views

Reusing yeast slurry after cold-crashing.

I let a lager sit for 10 weeks in a secondary until it was very clear (the cold helped with clarity), and then used the yeast slurry at the bottom as a starter for another batch. I usually make a ...
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2answers
302 views

Yeasty Tasting Pale Ale

This is already after the fact, since the batch has been consumed but... My pale ale that I made had quite a 'yeasty' taste. It still wasn't bad, though I would have preferred it to be a bit milder. ...
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1answer
221 views

How much yeast to add back after extended lagering?

If after an extended lagering period there is fear of not having enough healthy yeast available for carbonation, how much yeast should be added back? What is the easiest form to use, dry or liquid?
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1answer
420 views

Lager Bottling Temperature

I've got a lager that's been in my garage for the last month (generally hovering between 30 and 36F), and I saw a question relating to temperatures for bottle conditioning a lager, but I'm wondering ...
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2answers
440 views

Harvesting commercial yeast

Which commercial beers (local and/or national) are bottle conditioned and still have viable yeast? Also, what do commercial brewers do that renders the yeast unusable (pasteurization, filtering, ...
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my beer smells some like yeast ?!? taste ok. but smell is off? help.

my beer smell like yeast. taste is ok but there is a strong off odor.
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What is the difference between yeast nutrient and yeast accelerator?

I know what yeast nutrient is, but was browsing around the brew supply and noticed yeast accelerator. Anyone know that the REAL difference (if any) is chemically? See it mentioned through a goggle ...
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1answer
312 views

End of Fermentation?

I emailed this to the Mr. Beer beermaster, but I figured I'd ask here as well. For my Doppelbock 7.0, this Sunday will make it 3 weeks in the keg for fermentation. The previous beer I made was a pale ...
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1answer
192 views

My latest batch of Must had half a dozen floating spots and low sediment, what happend?

Sequence of Events: March 21st - Boiled water and honey and placed in sanitized plastic bucket with airlock (containing sanitary solution: Iodophor). Bucket placed in basement to cool overnight. ...
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1answer
378 views

odd film on my cider

I went to rack my cider into a secondary, pulled off the lid of my primary and saw this whitish film. I racked it and the film stuck to the sides of the primary as the cider level dropped off. ...
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2answers
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What effect will doubling the yeast concentration have?

If I want to have a beer ferment in less time would doubling the amount of yeast I pitch help? Will there be any consequences of doing so? Does it matter if I make a starter for them both?
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4answers
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Does yeast choice matter as much in ginger beer?

I'm about to brew a ginger beer and was wondering if the choice of yeast is as important in a ginger beer, where the ginger dominates the flavour. I've got the yeast-under-the-cap packet and a US-05 ...
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2answers
428 views

Is it better to make yeast slants from a bottle after single stage fermentation or from the primary?

I am considering making some yeast slants to try to start a little bit of a yeast bank. In my research i have read about folks making a starter from the yeast in the bottom of a bottle conditioned ...
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4answers
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Can I add more yeast during primary fermentation?

I've got a brew that's been on primary fermentation for 10 days and still haven't seen any activity in the airlock (again). Gravity has dropped from 1.040 to 1.014, but I'd still like to raise the ...
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2answers
470 views

Should I brew in too-warm climate or substitute the yeast?

I'm about to brew an Amber Ale (from an LHBS kit) that comes with a US-05 Safale yeast. The forecasted temperature for the next couple of weeks is likely to remain at min 20C (68F) overnight & ...
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2answers
802 views

Why is some of my beer flat (half of the bottles in one of 2 batches done together)?

I brewed and subsequently bottled 2 batches of beer together, following much the same process for cleaning/sanitizing and brewing throughout. When bottling, I bulk primed both batches with a sugar ...
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3answers
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Wyeast 3944 Slow to Work

I wanted to see if anyone else had this experience - I'm on my second batch of a Wit bier with this yeast and have noticed that in both scenarios - after two weeks the Krausen has not fallen. The ...
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3answers
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Brewed an Oatmeal Stout and the gravity did not drop as much as predicted, should I re-pitch or add yeast nutrients/energizer?

I just brewed an oatmeal stout see recipe details here and I have a question about missing Orignal and/or Final gravities. The OG was supposed to be 1.061 and the FG 1.016. I brewed and got an OG or ...
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1answer
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Does Champagne yeast really dry out a beer?

If you pitch champagne yeast into your wort from the start will it attenuate further than done with an appropriate pitch of standard american ale yeast (say WLP001)? I think people use champagne ...
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4answers
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Whats the difference between yeast and bacteria?

I know that in a very general sense, yeast = good, bacteria = bad. But why is this? Do bacteria produce alcohol like yeast? Is yeast a subset of all bacteria, or vice versa?
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Will there still be yeast leftover for second fermentation after filtration?

I want to filter my beer then put it in the bottles for the second fermentation (aka making the beer fizz). I am worried that I will get rid of all the yeast and end up with flat beer.
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3answers
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Should a starter be hopped?

Should I add hops to my starter recipe? I just started using starters, and I haven't been hopping them at all. I didn't even think of adding hops until I read some of the answers on this question. ...
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No bubbles in the airlock - should I still bottle the brew?

I'm attempting my first brew using a kit with all the provided ingredients (it's a lager). My brew is still in the big tub and has been there for about 2 weeks now. Initial SG was 1.040 and it's now ...
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Yeast and Hop Longevity

I picked up the ingredients for an IPA when I was getting the ingredients for a Milk Stout a while ago. The plan was to have everything at the ready so I could make the IPA shortly after the stout. ...
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1answer
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When is it necessary to pitch fresh yeast for bottle conditioning?

I've read that you can leave an ale to secondary for months and enough yeast will remain in suspension that you won't need to pitch additional yeast when bottling. But are there times when you do ...
2
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1answer
676 views

How much sugar should be used when priming with Brett?

I've read that Brett will consume sugars that other yeast strains cannot. Is this true? I couldn't really find too much information on it. If this is the case, should I be worried about over ...
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If a vial of yeast is at room temperature for 3 days then put back in the refrigerator, is it still viable?

I live in an apartment and didn't receive notification that my yeast had arrived for 3 days after it got to the office. Normally, I'd just toss the vial of yeast and go to my LHBS to get more, but ...
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3answers
803 views

Wrong yeast…cloudy beer?

I was planning to make an IPA and was planning to use wyeast #1056 but i think that I mixed up my yeast with another guy at the store cus after I pitched i noticed that the yeast I had added was ...
3
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2answers
674 views

cold conditioning saison then bottle conditioning

I brewed a high gravity (1080) saison and am planning on cold conditioning it in secondary at 32 degrees x 2 weeks, then bottle conditioning it. I am wonder will the cold conditioning make all my ...
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2answers
114 views

Sloe wine: going very slowly

Since I had enough sloes left over after doing this year's sloe gin, I have a demijohn of sloes fermenting - the first home brewing I've tried. About 2kg of sloes, boiled down with 2kg of sugar, and ...
4
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2answers
265 views

Looking for a relatively low attenuating yeast with distinct Belgian flavors.

I'm working on a recipe for a Baltic porter but would like to ferment it with a stran that produces distinct belgian flavors. The problem is that most of your belgian strains are too high attenuating. ...
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2answers
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How long can yeast be stored?

If I buy a tube of liquid yeast from my local homebrew store and throw it in the fridge, how long before it's no good? How 'bout dry yeast?
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316 views

Using yeast from a local brewery

My favorite local brew-pub has a standing offer to share their yeast with homebrewers; bring in a jar & they will fill it for you. Aside from the obvious "it's free," why is their yeast ...
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2answers
1k views

What are the advantages of Dry vs Liquid yeast?

Pretty straight-forward- what're the benefits and drawbacks of dry or liquid yeast?
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5answers
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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 ...
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0answers
139 views

New Wyeast private stcok yeast strains? [closed]

Has anyone had any experiences with the new Wyeast Private Reserve yeast strains. I just bought a Cask Ale, and wondered if anyone had tried a beer with it yet?
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2answers
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I have some “expired” mead yeast, is it still good?

I have some liquid mead yeast that has expired a couple years ago, according to the date on it. It has always been kept in the refrigerator. Could it be revived and used or do I need to buy some new ...
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2answers
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Capturing wild yeasts?

Has anyone done any experiments trying to capture wild yeasts around their home/property and ferment with them? Any tips, methods, ideas, etc. would be appreciated.
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591 views

First Time Brewing…am I doing it right?

So I went to my local brewing store, and got a starter kit. It came with a 7 gallon fermenter, a siphon tube, a floating thermometer, bottle caper, bottle caps, bottle scrubber, and sanitizer. By the ...