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

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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 ...
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12answers
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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?
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Shaking vs not shaking

I'm playing with a yeast starter right now and I've noticed when I shake the mix the yeast gets more active. I'm wondering how this applies to my actual fermentation. So I was thinking I'd let my ...
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6answers
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Warming up a demijohn / carboy

As a continuation to my previous question about a very slow fermentation of sloe wine, I think my demijohn is just too cold where it is. I haven't taken readings - I'm still fuzzy on how - but judging ...
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2answers
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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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9answers
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Brewing Solid Things: Can Leftover Yeast Be Used for Bread?

I find myself baking a couple loaves of bread just about every weekend. Has anyone tried reusing their yeast from brewing for baking bread? I've heard that using some of the spent grain in bread ...
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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
831 views

How do I make a Yeast Starter?

I know I should be using a Yeast Starter so that I can make sure I have enough, healthy yeast, but I've never managed to go around to it. How would I start a yeast starter? How long before brewday ...
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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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3answers
488 views

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. ...
4
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3answers
522 views

What is the proper method of pitching a starter?

What's the proper method of pitching a starter? Do I just pour the whole thing in or do I need to "harvest" a certain portion of it? I just started using starters (.25-.5 Gallons water + 2-4 cups ...
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4answers
666 views

Reusing Yeast From previous Fermentation

When I finish fermentation I am left with a large amount of extra yeast in the bottom of the carboy. Can I reuse this yeast in any way? Hopefully to avoid buying yeast again every single batch?
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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?
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What effect do different types of yeast have when creating a recipe?

What happens when you use different types of yeast? Does it change the flavor? I'm not talking about mixing different types of yeast in the same recipe.
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2answers
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When bottle conditioning, when should I re-yeast, and how much yeast should I add

I have a Chocolate Cherry Stout that is currently in secondary on fresh Cherries. It has been sitting on the cherries for 2 months now. As I prepare to bottle I want to be sure I have enough, healthy ...
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3answers
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What's the best method to catch a strain of wild yeast for homebrewing?

I'm interested in learning about brewing using wild yeast, but I wonder what is the best method to catch a strain that would produce good results in homebrewing. And of course how to ensure that it ...
13
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3answers
663 views

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?
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0answers
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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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4answers
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Should you rehydrate dry yeast?

I've read conflicting opinions on whether or not to re-hydrate dried yeast. I've had successful fermentation with dried yeast in the past but have not tried re-hydrating. Has anyone had better/worse ...
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2answers
206 views

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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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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5answers
4k views

How do I culture yeast from a commercial beer? Is it legal?

If I like the flavor profile of a yeast in a commercial beer, how would I go about culturing it? I have some very basic lab equipment, but I can buy anything that's reasonably priced. Also, would it ...
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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
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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 ...
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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
304 views

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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1answer
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Is Mixing Yeast OK?

Say I wanted to make an ale which has some of the banana characteristics of a Belgian yeast, but also wanted some of the citrusy flavors of an American ale yeast. Could I achieve this by making a ...
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1answer
711 views

Making a Yeast Starter

It seems that there are varying opinions about the size your starter should be. What is the basic rule-of-thumb for 5 and 10 gallon batches? How much water should be used? How much malt/malt ...
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2answers
673 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
450 views

Brett: Primary or Secondary

What are the differences between fermenting a beer solely with Brettanomyces (or some blend of sour yeast) versus adding it to the secondary after primary fermentation with a non-sour yeast?
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1answer
113 views

Preparing Yeast

I've been reading the How To Brew book, and it (amongst other sites) recommends rehydrating yeast before pitching it. http://www.howtobrew.com/section1/chapter6-5.html Some sites suggest adding a ...
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4answers
590 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 ...
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2answers
717 views

Which fermentation temperature should I favor?

I am doing a dual brew this weekend. First up will be my Engine 97 Steam Beer (aka California Common - see recipe here: http://www.lootcorp.com/recipes/engine-97-steam-beer.html - credit for original ...
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1answer
675 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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1answer
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Time It Takes Brett C to Ferment

So I have this idea where I want to thread a citra-laden Belgian IPA with a pineapple beer fermented with Brett C and Brett C only. Does anyone have any experience using Brett C and can speak to how ...
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3answers
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Wyeast 1187 Ringwood Failure

I'll start by saying that I've never used liquid yeast before, so it could all be my fault... Anyway, I ordered some Wyeast 1187 Ringwood to use for a Dogfish Head 60 Minute IPA clone that I did on ...
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2answers
353 views

Starter and smack-packs

Is making a starter a good idea when using a larger activator pack from Wyeast? Should you smack the packet and add it to the starter, or add it after it swells?
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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?
4
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1answer
133 views

Would you trust this starter?

I had one WLP001 vial of yeast that was only 14 days past its "best buy" date. I made a starter on a stir plate 2 full days before brewing. I got good growth as estimated by an increase in creamy ...
4
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2answers
316 views

Temperature conditions for saving cropped yeast?

What is an ideal environment for saving yeast I have harvested from my fermentation vessels? The lowest survivable temperature? Highest? I recently found the top of my fridge to be too cold when I ...
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3answers
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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 ...
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3answers
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Should I ferment a new batch directly on the yeast cake generated by the previous batch?

I'm going to re-use the yeast cake from a low-gravity batch to ferment a high-gravity batch. Can I just put the wort directly on it? Does it then need to be agitated? Is it worth the risk of ...
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3answers
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Why is it bad to pitch too little yeast?

What are the effects of underpitching your beer? We have an answer for over pitching, I think we need the complete set.
11
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1answer
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Why is it bad to pitch too much yeast?

What are the effects of over-pitching? Where is the line for, say, a 1.050 beer? There is also a question for to under-pitching.
3
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1answer
903 views

stepping up a yeast starter

I followed the instructions in Palmer's "How To Brew" (along with some modifications from a Jamil interview that I heard), for getting a yeast starter going. It is now sitting on my stir-plate, with a ...
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3answers
506 views

What yeasts are good for summer brewing?

I decided last night that fermentation temperature control was not a priority for me (minimizing brew time and moving to kegs are ahead of it). I have a basement that stays pretty cool, and four ...
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5answers
2k views

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 ...
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4answers
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Reusing yeast at home

Reusing yeast at home is something I'm incredibly interested in, but haven't found the time to learn enough about it just yet. What are the basic steps for harvesting, cultivating, or whatever other ...
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3answers
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Using Multiple Strains of Yeast in the Same Batch?

I've been thinking about this recently, so I figured I'd ask it here. Is there any reason you couldn't use two strains of yeast in the same batch of beer? For a particularly high gravity amber ale, ...