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Questions tagged [yeast]

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

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Pale Ale All Grain, FG not achieved

I would like your input as to why my FG was far from the theoric on from brewer's friend calculator. All Grain Pale Ale: Maris Otter 4.7k Roasted Barley 94 gr Chinook 12 aau min 60 Cascasde 5 auu ...
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Finicky Wyeast 3724 Stall

Looking for some useful suggestions. I’m a veritable noob when it comes to brewing. I’m on my second brew and already trying to experiment with my own recipe albeit sticking to extract / specialty ...
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1answer
42 views

2 stalled fermentations for two different beers/yeasts - what's going on?

I have two beers (recipes here and here). One is a session IPA, the other is a saison of sorts. They are two different beers fermented with different yeast, but both of them stalled. The session IPA ...
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2answers
63 views

STC 1000 safety

sorry if this is a question that’s been answered already. I’ve just completed a brew for a Belgian saison using wyeast 3724 and I’ve suffered the all to common stall that this yeast so often ...
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2answers
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Doubling a mead recipe

If I double a mead recipe, do I need to double the yeast I put in to have the same fermentation time? I'm doubling a small batch from a half gallon to a gallon, would I need to add a second packet?
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Is there a limit to yeast “cake” fermentation?

When using a yeast cake from another brew, is it possible to use too much? If so, what is the limit for a 5 gallon keg?
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3answers
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Store 500g dry yeast package after opened

I bought a 500g S-05 package and i'm planning to use it only 20 g per week. Any advices on how to store it? it will last around 4-5 months
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1answer
52 views

Pitching kombucha starter instead of yeast

My friend recently gave me the idea of making a kombucha-inoculated beer. Having never done it before, the principle seems fairly straightforward to me (this is my own guesswork): Ferment kombucha as ...
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1answer
31 views

Low FG on our IPA, can we force second fermentation?

We are brewing a Pliny clone, IPA with dry hopping. We had an OG of 1.065, and racked to secondary six days later. Our current FG is reading 1.032, which is nowhere close to where we want to be. ...
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2answers
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Is it normal to see yeast cells stacked in the Z axis when counting yeast?

I just got started with yeast cell counting and was surprised to observe yeast cells that are at different z axis depths at 400x. That is, by adjusting the focus (not the x/y stage) I can make some ...
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2answers
63 views

will two strains of yeast mess each other up

I put an old packet of yeast into my beer and it is barely fermenting. If I add a second type of yeast will the first one have any effect?
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1answer
41 views

Remaining ginger bug

This is the first time I will make a ginger bug and the process seems very simple but my question is. How long can I keep feeding my ginger bug and if I will be using that bug to make ginger beer ...
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1answer
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Will reused yeast change beer taste?

I noticed that some breweries and home brewers reuse yeast for next batch. But from what I read about yeast mutation and generations that every new cell generation is bit different and can affect ...
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1answer
57 views

Pressurized Ferment Yeast Harvest — what are these layers?

I'm poured the keg remnants from a pressurized ferment into a beaker to let it settle out but I'm puzzled by the layers I'm seeing. From a typical non-pressure ferment, you see (from the bottom up), ...
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3answers
88 views

Help me debug my Christmas Ale band-aid flavor

Recently I brewed two batches of a copycat Christmas Ale. You can ignore the recipe's water adjustments, since I didn't do them. Before fermenting, the wort smelled and tasted perfect - just the ...
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1answer
51 views

Bentonite could change the yeast taste?

hello I am new in this kind of things. I would know if I use Bentonite it could change the taste and smell of yeast in the fermentation ? I am gonna use breed yeast. I would quickly finish my product ...
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1answer
83 views

Wine yeast or champagne yeast which will ferment quicker? [closed]

Hello I would want quick method if I use breed yeast the fermentation finish in 7-10 days. But its taste is terrible. I would like to know, between Champagne and Wine yeast - which one is faster ?
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Measuring yeast for pitching into very small batches

Disclaimer; I am brewing predominantly ginger beer, and experimenting with some commercial yeasts in pitching. My batches of ginger beer are 1~2 gallons max, as it's consumed pretty quickly and I ...
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1answer
82 views

Can yeast survive being almost frozen?

After forgetting to place the yeast starter in the fridge overnight I placed it in the freezer this morning for a short while to do a quick cool crash. I misjudged the time and the water above the ...
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4answers
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Yeast pitching temp/ ferment temp

I have read here and there that it is ok to pitch your yeast at a high temperature, say 83°F? Seeing as it will take a considerably long time for the temperature to drop to an ambient 68°F then ...
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2answers
51 views

Ginger Beer ABV from Bakers Yeast

I’ve made ginger beer a few times. I usually make it with just fresh ginger and raw honey. Usually the I get well less than 2% ABV. This last week though I used a different honey, sourced from a farm,...
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1answer
38 views

removing sugar / dead yeasts / residues from keg

Due to some CO2 cylinder carbonation problems I have resorted to the desperate method of pouring sugar into the keg. Which is probably bad, as I have found out here all I needed was lower temperatures ...
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4answers
272 views

Measuring alcohol content

How do you measure alcohol content in a fermented drink without relying on measurements of gravity? Say we have a bottle of water (pasteurized), add sugar (that has been treated to have no living ...
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1answer
28 views

WLP648 does it make a sour?

I've been reading up on WLP648, but can't determine if this yeast will develop a sour beer on its own or if it requires something else to become properly sour aside from 3-6 months. I've read some ...
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1answer
61 views

First Time - Honey Mead questions

I am making Honey Mead for the first time soon, I will try making 2 1 gallon jugs. I have everything I need (Jugs, siphon, DAP, red star wine yeast, honey, sanitizer, carboy), but I want to make a ...
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2answers
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Should I let hydrated dry yeast cool before pitching

The Gospel of John states that dry yeast should be hydrated at a temperature warmer than what you would typically start fermentation. But John also states that yeast should be pitched from cold to ...
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2answers
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Could killer yeast affect my sourdough starter?

I've just pitched K1-V116 into a batch of rosehip wine. As I finished, thoughts of one kind of yeast led to another and I went to feed my sourdough starter - and stopped. K1-V1116 is a killer strain ...
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1answer
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Beer yeast for wine making?

Does anyone know if it works to use beer yeast to make wine. I've got a batch of chardonnay grape crushed and sitting in my fridge right now, but I bought beer yeast by mistake. Can I use the beer ...
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2answers
109 views

Making alcohol at home from sugar and baking yeast

I am trying to make alcohol from baking yeast I didn't use any special tools or airlock I got the normal baking yeast, sugar(sucrose) and water Dissolved sugar in water putting the yeast in the ...
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2answers
126 views

To ferment or not to ferment for no alcohol

I am making ginger beer. I’m using basically raw ginger and honey and fermenting with bakers yeast. I’m getting somewhere between 2% & 2.3% ABV in testing. I don’t want any alcohol in the ginger ...
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3answers
61 views

Yeast or not to yeast, that is the question

So this is the third year I am making home made wine from a combination of red (75%) and white(25%). In the past the person in which I purchased from had a big industrial blender of sorts and gave me ...
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6answers
385 views

how to cultivate the beer yeast?

Do i need beer yeast for cultivating my own beer yeast? because i tried to brew beer with bread yeast and the result was not satisfying. Also, in my country as an islamic country it's not easy to find ...
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1answer
82 views

What is a realistic growth factor in large volume stir plate yeast starters?

The Homebrew Dad yeast starter calculator (which gives you more numbers than the Mr. Malty one does) promises a yeast growth factor of about 45 times for 10 billion cells pitched into 3 litres of 1....
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1answer
63 views

Time lapse, adding yeast a week late

After getting my grape juice in a bucket, I added the sugar and wild yeast killer. Didn't have the yeast to add before sealing it up. Checked the next day, it has a purple foam that collected on top. ...
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2answers
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How long can you wait till you add the proper yeast

I crushed my grapes added 5 lbs sugar and a wild yeast killer pectic enzyme. I haven't got the yeast for the correct grape wine process. It's been 6 days. The temperature has been maintained around ...
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3answers
162 views

Reducing the taste of yeast

How can I reduce the taste of yeast in my homebrew? Obviously filtering but are there additional options?
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4answers
171 views

Alternative to stir plate for yeast starter (and erlenmeyer flask)

Looking at creating my first yeast starter for a DIPA recipe with on O.G. target of 1.085. For this O.G. Brewer's Friend is telling me I would need a 3L starter of an O.G. of 1.040 with a stir plate ...
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2answers
71 views

Yeast Attenuation

Does the percentage attenuation of the yeast, directly match the fermentability of the wort, ie, If i am after a one fifth gravity beer, then that has attenuated by 80% . so is the spirit indication ...
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1answer
54 views

Home brewing for undergraduate study

I am thinking of making a beverage out of locally available starch sources. My question is, is there a possibility to convert those starchy objects to fermentable sugars? And what type of yeast should ...
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3answers
252 views

How long does it take for yeast to mutate into having other characteristics?

I have heard yeast can mutate when you re-use yeast, and when it goes through many yeast-generations. How long does it take for the yeast to mutate? Which factors have an impact on the ...
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3answers
60 views

Wine or cider yeast for ale

I'm a noob brewer and being distracted added boiling water to my yeast. I added cold water immediately however I'm afraid I may have committed yeastocide. The only place I could think of around me ...
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1answer
48 views

Czech Pilsner - S-23 Yeast Alternatives Temperature Concerns

I have made a Czech Pilsner using S-23 Yeast and had very good results fermenting in a small refrigerator. Since, I don't have that refrigerator any longer, is there a substitute yeast that doesn't ...
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3answers
211 views

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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2answers
73 views

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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2answers
51 views

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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3answers
290 views

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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1answer
151 views

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 ...
4
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1answer
72 views

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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2answers
52 views

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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1answer
85 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. ...