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

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Culture yeast from bottles

i have read that we can culture yeast from commercial bottle conditioned beers, So is it not the same that we can use a bottle of our own beer that has been made from a brew that used a White labs or ...
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Removed air lock ,while in the first day of fermentation

Can any damage be done when air lock is removed for about 3 to5 minutes. I repitched yeast this morning.what can I expect?
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Is it worth saving my brew?

I have started off a Cider kit. It was close to the BBD. It only actively foamed for a day or so and looked finished or dead (but in those two days has dropped from 1040 to 1018 however I didnt know ...
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Failed primary fementation - repitch?

Yeast: Mangrove Jack's M44 - US West Coast Yesterday I brewed an IPA recipe but had a couple of issues when it came to pitching the yeast. The first was that I could not get the wort temperature ...
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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 ...
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What yeast should I use to make a semi-sweet Ginger Beer with about 5% ABV

I want to make a semi-sweet (a little less sweet than Crabbies) ginger beer that is about 4.5 to 5.0% alcohol, and my plan was that in the end, I want it to be between 1.020 and 1.025 s.g.. Therefore ...
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Starters for 1500 litre brewing with 100 g of Dry Yeast

What is the possible way to brew batch like 1500 liter with 100 g of yeast ? And how many starter steps need to go and how long will it take to get target pitch rate ? Thanks all !! P.S I'm new ...
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28 views

WLP066 London Fog fermenting smell

I'm fermenting a NEIPA at the moment. It's 5 days in. At first the fermenter snelled great, the usual sweet and hoppy smell but now it smells weird like a cheap lager that's been left out all night. ...
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FG not achieved after two weeks.

I have brewed a stout intended to be around 6%. After two weeks the FG is 1.024 but expected to be closer to 1.010. I found when I made the yeast starter (Giga Yeast 011) the yeast clumped and ...
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1answer
22 views

Cell growth factors in different types of yeast starter

Cell growth in a yeast starter is dependent on the volume of starter wort. Palmer states that as a general rule of thumb, a 1 liter starter roughly doubles the cell count while a 3 liter starter about ...
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70 views

how does light affects yeasts

according to this research: Red LED light (630 nm) stimulated cell growth but slightly inhibited ethanol formation. In contrast, Blue LED light (470 nm) significantly inhibited cell growth but ...
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why do we try to get rid of sediment?

A brief question, I will add details tomorrow. I am fermenting fruit wines in the pet-Nat style. I find the yeast and yeast activity in wines exciting, full bodied, healthy and invigorating. Drinking ...
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Yeast harvesting from bottle and fermenter

I harvested some custom Saison yeast from a particular brewery I like. I made a starter and have kept in the fridge. As there was only a small amount in the bottle (as expected), the amount of yeast ...
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1answer
36 views

Saving Kveik the old fashioned way?

I've been reading about Norwegian Farmhouse Ales and I'm quite curious about them. Should I drag a wooden wreath through the dregs of my Norwegian Farmhouse Ale and hang it up to dry and re-use it? Is ...
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2answers
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Any way to deal with bitter taste from turbo yeast?

I had some turbo yeast left over, and figured I'd try make a couple litres of ginger beer (sugar, grated ginger, a little lime juice) and elderflower wine (sugar, elderflowers, lemon juice and zest) ...
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2answers
82 views

Is aerobic fermentation in beer brewing a myth?

The more I read about yeast and fermentation, the more conflicting, confusing (and possibly incorrect) statements I come across. I have read in several bits of literature that yeast requires oxygen ...
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3answers
66 views

Going past alcohol tolerance

I have recently started thinking of getting into make mead and decided on a nice 15% to start. I decided to oversweeten the batch because I don't want a real dry mead. I want to add berries to the ...
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2answers
40 views

Will it be OK to ferment at a lower ambient temp than yeast recommends?

The yeast is Alcotec 24 hour pure original turbo yeast. I am going to try a sugar wash, so just granulated sugar, water and this yeast(which has added nutrients). Now the yeast instructions say ...
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Beer attenuation too high

I have made ~30 batches of beer during last winter and ~7% ABV beer had FG of 1.010 to 1.020. But in the last month the weather got warmer and my beer FG has dropped to below 1.010 to almost 1.000. ...
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Pitching rates and ester formation

From what I read in most publications, ester production tends to increase at lower pitching rates. It's not a linear relationship by any stretch of the imagination; in fact there seems to be some sort ...
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3answers
51 views

Number of cells in a packet of dried yeast

I'm trying to improve my understanding of pitching rates, and I'm struggling with some apparent inconsistencies. An often used starting rule is to pitch about 750,000 cells per milliliter per degree ...
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3answers
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Can saison yeast use lactose?

As title states, the question is can Saison yeast use lactose? i.e. is it possible to sweeten a Saison with lactose? Or, sweeten it possibly some other way? This is about Saison yeasts, dry or ...
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1answer
51 views

How much sugar to real apple ratio?

So I was going to try an apple cider up to around 12%. So how much sugar will I get roughly per apple and how much additional sugar should I add. The apples are a small granny smith kind. Currently I ...
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What strain of yeast is Fermentis BE-134?

The spec sheet says: The SafAle™ BE-134 is a Saccharomyces cerevisiae var. diastaticus and is characterized by a particularly high attenuation. This typical yeast strain is recommended for ...
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1answer
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Do you really need yeast/mash nutrients?

This is for a sugar wash only. I have watched a video on YouTube where they only used water, sugar and turbo yeast, no nutrients were used according to the video. Whereas other guides tell you that ...
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Turbo Yeast for making wheat beer

I am a newbie for homebrew wheat beer making. I used the alcotec turbo yeast 24 express(distiller yeast) for the fermentation. But After 20 hours brew is stopping fermentation. Can I keep it for the ...
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George Washington's beer recipe. Did he say “yeast”?

This journal is dated 1757. Pasteur connected yeast to fermentation in 1856 (discovered what yeast does) Historically bakers would take beer "waste" to make bread rise. Also there are early ...
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64 views

Cidery or wine flavor after bottle conditioning ale

I’ve done a few batches using Safale F2 in combination with dextrose for bottle conditioning. They all came out tasting sour after 2,5 weeks, like I image young sparkling wine would taste. Now it’s do ...
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Why does my fermentation keep stalling?

Each of my last four batches has stalled well above FG. The first two restarted after bottling and caused bottle bombs. The last batch was a kolsch with OG 1.047. Wyeast 2565. Stalled at 1.024 for ...
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Can I cold crash if I'll be bottle-conditioning?

I've seen cold crashing presented as a means of clearing beer by knocking much of the yeast out of suspension. But it seems to be a technique that's used by brewers who keg. Is there still enough ...
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146 views

Mixing dry yeast for NEIPA

I have a question did anyone tried to mix Nottingham Ale yeast and Windsor ? What are the results if you have such an experience?I want to use one pack of each in my NEIPA.I don’t have any other yeast ...
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141 views

Best yeast for bottle conditioning

I’ve used Safale F-2 and sometimes CBC-1 for bottle conditioning with good results. Doing so, flavour impact has been minimal. It also drops its dead clear once bottle fermentation is mostly done. It ...
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177 views

Does cider need yeast nutrient?

From what I've read, beer wort is relatively rich in nutrients and mead must is nutrient-poor. Where does cider fit on this spectrum? I typically do small batches and pitch pretty generously, one ...
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Chunky yeast Safeale-05 safe to pitch?

I just brewed American Red Ale, great fermentation, no off flavors. 11.25 lbs. Malteurop 2-row 0.75 lbs. Briess Caramel 60L 0.5 lbs. Belgian Special B But yeast, when fermentation is finished, looks ...
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Yeast stored at 30℃

About to brew for the first time. Making an IPA and bought Nottingham yeast which I just discovered says to keep at between 5-10℃ on the package. It's unopened but been at between 20-32℃ (those are ...
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Coopers Hefe Wheat yeast failed.. Can I pitch safale-05?

I'm pretty new to homebrewing and just tried coopers Hefe Wheat kit. I've followed the instructions and pitched the yeast into my carboy when the right temperature was reached. It's been 4 days and ...
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My first Brew gone wrong?

I attempted my first home brew from a kit last night, but underestimated how long the process would take so rushed it a little. After waking up this morning, I’ve realised I added the beer yeast into ...
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Using Extract kit yeast vs some external commercial dry yeast

Is there any difference in quality, rather than the strain and flavor profile, between the kit yeasts coming with the kit and some external dry yeast? Beers that i batched using external yeast (US-05,...
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2answers
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Add US 05 to my smack pack?

I have an ale that will have an OG of .073, but only 1 smack pack on hand and brewing in 12 hours. Nervous that the 1 pack may not be enough to support the OG? I always have an extra few dry packs of ...
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Soju yeast strains

I want to figure out how to make my own soju. It seems easy enough, rice, nuruk and yeast. The one thing I havent figured out is what yeast strain soju is made with and if it is commercially ...
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Unexpected flavours after bottle conditioning

Been brewing beer for a few years. In my experience, bottle conditioning introduces unintentional flavours. It makes it very hard to make anything lighter than an IPA, IIPA and barley wine. The ...
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3answers
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Can I use yeast from a bottle of beer?

I just made a nice pot full of wort with expensive malt and hops. I pitched the yeast and two days later, no action. I'm pretty sure the yeast is dead, expired, no good. There is no brewing supply ...
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157 views

How much yeast can I reuse from the last fermentation?

I have a yeast on the trub from my 5 gallon batch fermentation. I want to reuse it for my next batches. Is that ok if I add all of this yeast to my next batch? Or is there any proportion I should ...
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What is the control recipe for official yeast attenuation ratings?

Attenuation is the % of sugars a yeast will consume during fermentation, and is a general gauge of how much ABV will result from a specific OG solution. We all know that the attenuation of a specific ...
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Conditioning and storing beer at temperatures around -5°C

I am bottle-conditioning and storing beer in a storage room with temperatures reaching as low as -5°C (significantly below the freezing temperature of water). There are few sudden changes in ...
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58 views

How to check that yeast is still good?

I have an older packet of yeast that has been stored in the refridgerator past the best by date on the package. Is it still okay to use the yeast? Is there a way to test to make sure it's alive still?
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52 views

Looking for yeast with dry flavour to pair with Nelson Sauvin

I'm looking to pair Nelson Sauvin hops with some yeast. The hop variety is reminiscent of white wine, grapes and gooseberry. I'd love to go with a dry flavour profile, like a Belgium strong ale yeast, ...
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Refermentation with fruits and sugar

I recently brewed a wheat beer that is now in primary fermentation. I planned on using yuzu juice after primary to give a special taste. Also, after some thought I wanted to add a little ABV (from ...
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Using Yeast cake as a nutrient

I get usually about 1/4in of sediment towards the end of the fermentation. Does anyone know weather this predominantly dead or live yeast. I propose to use some and boil it to act as a natural ...
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Alternative to making a yeast starter | Red IPA

I am planning on trying this recipe - http://www.seriouseats.com/recipes/2011/04/red-ale-for-beginning-homebrewers-hoppy-red-ale-recipe.html, and calls for the following: 1 Liter starter of either ...