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

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Is this a pediococcus infection?

A berliner weisse we forgot to bottle for around a month and a half. Did not introduce pediococcus or lactic acid in the fermentation. Did a sour mash before the boil so lactobacillus shouldn't have ...
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28 views

What is the approximate batch size/OG limit for US-05 11g packet? Have I used enough?

I've started a brew with an OG of 1.065 in a 23L batch. I pitched a rehydrated 11g pack of US-05 and after 5 days I took a FG reading when I observed no bubbles after some time; it came out at 1.028 - ...
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122 views

Is oxygenating after brew day okay?

If you don't oxygenate on brew day, is it too late or can you oxygenate late? If so, are there limits?
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35 views

Lightening of Cider

My peach-apple oxidized a bit as I was juicing and started fermentation amber-brown. Over two days of rapid fermentation with Safale US-O5 dry ale yeast, the color lightened to a pale yellow, straw ...
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34 views

How to fix yeast smell in young wine from kit

I started my first attempt at fermenting this wine kit in mid-April. I followed the initial directions pretty meticulously which included stirring in the fermentation bucket daily (due to kit ...
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47 views

Handling dried yeast

I'm brewing a coopers ginger beer kit but over the past week the yeast didn't seem to activate particularly well. There has been no krausen and over the past couple of days there have been a few ...
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38 views

Does yeast type affect wine taste..?

I'm new in wine making and I tried to make it with fresh yeast, not dried. I think I'm using a lot of it to help fermentation end faster. Will this affect the taste of wine? Will dries yeast achieve a ...
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47 views

Heating after fermentation?

What's the general consensus on leaving a heat source turned on after fermentation has complete? I'm doing an Imperial IPA which should finish fermenting in 4-5 days going by previous experience with ...
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1answer
55 views

How will this beer turn out?

I brewed my first all grain beer on Sunday; everything went well barring one leaky tap and a slight blockage on the tap in my kettle due to a poor hop filter. It is supposed be an IPA style beer using ...
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39 views

What is the specific role of yeast in wine making? [closed]

I'm a senior student, experimenting on alcohol concentration of wine using different variables. My variables are white wine yeast and brewing yeast and whilst I know the main role, I would like to ...
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30 views

Yeast not viable?

If I think my liquid yeast was not viable yet pitched it unknowingly and now no fermentation happening-can I introduce new yeast or trash the batch ?
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33 views

Culturing Yeast and Bacteria from Pulque

I'm interested in making pulque, and was wondering how to go about culturing the yeast and bacteria necessary for making it from an existing batch. Is this at all dangerous? I know doing this with ...
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3answers
100 views

Can I add hops and sugar to fermenting beer?

just would like to know if its possible to brew a beer over multiple weeks.I was thinking of brewing my next beer by adding a different hop every week for 3-4 weeks.And at each time adding more sugar ...
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72 views

Is autolysis a problem when reusing yeast?

I've seen around here and in other sources that for homebrewers a secondary fermentation (concerning autolysis) isn't necessary, unless you're going to dry hoppy or something like that. My question is ...
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1answer
102 views

Fermentis S04 vs.S05

I am trying dried yeast for the first time. I did up 100 litres of English IPA yesterday and I pitched 2xS04 into 50 litres and 2xSO5 into 50 litres. Anybody want to hazard a guess at the ...
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1answer
55 views

Optimum Fermentation Temperature

I am planning on brewing a wheat beer with Danstar Munich Wheat Beer Dry Yeast. I didn't realize until I had already made the purchase that the optimum temperature for fermentation was 55-65. I don't ...
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29 views

What yeast for carbonating a lager?

We brewed a Dark Lager using Wyeast 2007. It fermented for two weeks and has been lagering for 3. When we bottle, we think we'll need to repitch to ensure the bottles carbonate. Thoughts on what ...
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101 views

Which is better: old yeast from the primary fermentation or reused yeast from primary fermentation?

It's known that reuse yeast from early stages is better. But during the fermentation the reused yeast multiplies itself, producing newer cells. Said that, I'd like to know if it's better to use yeast ...
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64 views

Wine fermentation without yeast?

Apologies if this is a duplicate - wasn't able to find anything similar. Making a 3gal batch of strawberry wine. Poured sugar-water over fruit and set aside to cool. Been having problems with bugs ...
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133 views

How can I get more consistent carbonation in bottles?

Some of my bottles usually turn out over carbonated, and some turn out under carbonated. Is there a good technique to get consistent carbonation? I imagine it is a function of both evenly distributed ...
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275 views

Why doesn't the Brulosopher Quick Lager Method produce esters and other off flavors?

I'm brewing 6 lagers right now (all Wyeast 2206) according to the Brülosopher Fast Lager Method. Essentially, it involves fermenting at normal lager fermentation temperatures until it is 50% ...
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44 views

Any way to Flavour a Cider crafted with Baking yeast? [duplicate]

I'm very new to brewing, and I'm making a couple test batches of cider as we speak. However my accessibility to things like wine or champagne yeast, so i'm stuck with baking yeast. My question is ...
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98 views

putting the fizz back into beer

I'm hopping you guys can help me with this one. I want to fill a 2lt coke bottle with beer from bottles and add sugar and yeast to put the CO2 back in so it will last 8 to 10 days plus. I'm after ...
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72 views

Closed environment vs open environment in brewing

One thing that is very confusing for me right now is the dynamics of when to isolate the contents and when to aerate it. Like as soon as you finish boiling it's recommended to put a lot of oxygen by ...
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40 views

Does a different cell count invalidate a tasting expeeriment between two batches, or is it immaterial?

Now that I'm all grain I've done many experiments regarding differences in grains, trying to make 2 batches identical in every way except for one variable with the grain. However I just learned via ...
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107 views

Should yeast be washed or just stored in the beer?

The answer to this question suggests yeast shouldn't be washed, is that really the current consensus? what if I'm brewing a different style? Won't the trub affect taste? Lots of hop residue there. ...
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94 views

How much recycled yeast to use?

Morning all, I am just getting into re-using my yeast and have a question. I wash it as per the YouTube advice that I found (haha) and it seems to store pretty well so far. I have tried it in one ...
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46 views

wlp565 minimum time to bottle condition?

I'm fully prepped for wlp565 to stall out, but this question is about bottle conditioning with wlp565. what have been your minimum conditioning times to hit your desired CO2 level using wlp565? ...
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117 views

What can have caused my mead to have the taste of yeast?

I brew my first mead one month ago. I've put 1 dose of honey for about 3.5 of water. Ended up with a 2 liters of must in a pet bottle. I've put 10 grams of yeast (the entire sachet). Since i started, ...
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155 views

How long does a white labs liquid yeast vial last once opened?

I have been using half of a vial of white labs liquid yeast for brewing 1 gallon batches of beer. How long will the second half last once I put it back in the frige? It had been allowed to warm ...
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86 views

Yeast nutrients

I've seen several beer, mead, and wine recipes that call for yeast nutrients. I'm even now following a mead recipe that calls for staggered nutrients. But my question is, what exactly are yeast ...
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1answer
72 views

Tannins and yeast

On this page it is claimed that wine yeast needs some tannins to work, and that this can be a cause of stuck ferments in, say, flower wines. I have never heard of this, and cannot seem to find a good ...
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64 views

websites that describe yeast flavors?

changing the yeast is the easiest way to experiment with a recipe. I have my first brew about a week away from bottling. so what's next? there are a ton of websites out there, and I could use a good ...
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95 views

Starter quantity w/ Mr. Malty Calculator

I have an imperial stout that seems to have slowed fermentation ~ 1.040. I made a 2L starter w/ Super San Diego yeast on stir plate and pitched it at high krausen.. no decanting. Based on Mr. Malty's ...
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186 views

Over-pitched yeast- how to avoid autolysis?

I am doing my first batch with a yeast starter. I harvested yeast from a commercial Belgian trappist ale, built it up for a couple of days, cold-crashed it, decanted off the majority of the mini-wort ...
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36 views

Not seeing fermentation on lager's primary fermentation

We're currently trying to get a lager to go through its primary fermentation but after 2 days, we haven't seen any action or changes on the surface of the wort. The wort had a full packet of yeast ...
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357 views

Fermentation Done After 2 Days?

So this is a weird one. 3 weeks ago I made an Xmas beer. I brewed it, pitched the #2 yeast, and put the carboy in my cold dark room (about 70 F) to ferment. The fermentation and krausen began about ...
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4answers
169 views

Homebrew sitting on top of washing machine - agitation

My fermentation bucket is on top of my washing machine, when it spins it vibrates the brew. I've been careful to clamp it to the back of the washing machine with a bungee otherwise it might shake ...
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1answer
87 views

When will fermentation end? ( wine )

I made 10 litres of red wine ( pasteurized grape juice from the supermarket ), added 2kg sugar, used yeast bought from my local homebrew shop. Fermentation started after a day, and for the first two ...
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146 views

Stuck fermentation - how long to leave it for?

Porter, sitting at a steady 22 degrees, should be 5.2% abv, fermentation stopped at 2.5% A stir took it to 3.5% over a week. Added yeast, and nutrient, no sign of further fermentation 2 days on. ...
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260 views

First homebrew batch very sweet

I recently made my first home brew batch using an off the shelf starter kit (English brown ale). The beer is much sweeter than I was expecting and the alcohol content is ~3-3.5% (should be 4.5%). Am ...
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191 views

Yeast Starter Benefits

What exactly are the benefits and just how significant are they of making a yeast starter as opposed to throwing in the yeast as per most beer kit instructions?
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250 views

Basic yeast questions

I've been researching online for months now in preparation for my first brew but there are still questions to which I can find no answers. Is yeast either dead or alive, i.e. works 100% or not at ...
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1answer
237 views

Slow Fermentation in cider

Two weeks ago I started 2 gallons of hard cider from windfalls - washed and bruises cut out. I pasteurized my own apple juice, kept it below boil. No preservatives. Everything was santitized with ...
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3answers
187 views

Best yeast for Mead

I have been making mead for close to 5 years now. I do my mead a little different than most. I use Safale US-05 dry ale yeast. I let it ferment for 3 weeks then I transfer out of the fermenting ...
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2answers
207 views

What yeast is in White Labs WLP080 Cream Ale Blend?

Has anyone used the Cream Ale blend from WhiteLabs? I used it recently and am surprised at the lack of flocculation. The beer has been in a cold keg for a month and its still fairly cloudy. Was ...
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1answer
47 views

anyone know where good tutorials are for starting to brew lager

I am currently brewing my own beer and its going good. For my next batch I want to make something like a Coors Light or even something that tastes like Fosters or Carlsberg. If anyone could help it ...
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139 views

Why were we able to make alcohol with little cleanliness and no sanitizer? [closed]

When I was younger I lived in Missouri for a bit and I met a guy who ended up having me help him make "shine" (that's what he called it) in the woods fairly often - I guess you could say that I was ...
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66 views

No pressure in secondary

I have a problem with an ale kit I've brewed and kegged. I have done primary with a s04 yeast and its been in secondary for about 5 days and I've checked it this morning and its not built up pressure. ...
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91 views

What is the smell from growing beer yeast and is there any adverse effects from the odor/fumes

What are the fumes from growing beer yeast and is there any adverse toxic problems?