Questions tagged [yeast]

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

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1answer
52 views

Beer brewing, what to do when you used too little yeast for fermentation?

I recently got a little beer brewing kit to use at home with a 4L fermentation bottle. Up until I filled the beer into the bottle I think I've done everything right, but since then I saw no sign of a ...
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1answer
58 views

Final gravity too high

I have an IPA that I've brewed in five gallon batches before. OG at 1.065 and FG at 1.010. Those were hydrometer readings. I scaled it down for a one gallon batch, and pitched half a packet of yeast (...
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Does chlorine kill yeast?

Does chlorine in tap water kill yeast? Does chloramine kill yeast? Specifically Lalvin 71B wine yeast? Is it OK to use filtered tap water (Culligan filter) to re-hydrate yeast?
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Does cold crashing have a negative impact?

According to "How to Brew" by John Palmer (4th ed.), cold conditioning (a.k.a. lagering) is the act of cooling beer after fermentation has completed (including maturation) in order to clarify the beer....
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Can I make a “lager” with ale yeast?

On the kegerator website, I found this method to make a "cheat lager": To brew a great “hybrid” lager, I’d recommend using one of the following yeast strains: White Labs WLP001, Wyeast 1056 or ...
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1answer
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Why is oxygen bad for mead?

I see comments on YouTube about how oxygen is bad for mead. However, according to Wikipedia, oxygen is good for yeast to develop resistance to alcohol. https://en.wikipedia.org/wiki/...
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1answer
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London Ale III Fast

I just brewed a NEIPA and fermented it with London ale III. I pitched the yeast 2 and a half days ago and it started fermenting around 6 hours later. I wanted to dry hop at high Krausen but when I ...
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2answers
56 views

Brewing with bread yeast

recently bought northern brewer irish ale and yeast was misplaced. can I use bakers yeast? Also, how long will wort last before adding yeast?
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Recently expired kit. Is the yeast still ok? [duplicate]

I have just received a kit which says that the expiration date is in April 2019 (2 months ago). I am quite confident that the extract is still okay, but I'm wondering about the yeast. Is it still ...
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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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3answers
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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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2answers
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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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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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51 views

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
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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
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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
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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
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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
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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
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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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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
138 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
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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
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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
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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
279 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
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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
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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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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
131 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
129 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
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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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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
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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
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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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238 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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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
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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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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
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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 ...