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

learn more… | top users | synonyms

2
votes
2answers
382 views

Scaling recipe ingredients to smaller batches? How do AAUs scale?

I plan on brewing 1 gallon batches. The problem is that most recipes are for 5 gallon batches. The scaling seems obvious: divide the amount of each ingredient by 5. With this in mind, a few ...
1
vote
3answers
138 views

ReaLemon's preservatives

I'm trying a simple recipe for ginger beer (Method 1 here). Would using ReaLemon be ok instead of an actual lemon? I understand that preservatives in an apple juice can harm the yeast when making ...
3
votes
1answer
356 views

I moved a Kolsch to secondary after 4 days. Should I repitch yeast?

This is my first batch ever, a Kolsch from a kit. It fermented like crazy the first 2 days, but after 4 had stopped bubbling, so I moved it to a secondary container. As I was transferring, I noticed a ...
14
votes
4answers
2k views

Using trub directly vs. yeast rinsing.

Sometimes referred to as "yeast washing," the process of yeast rinsing separates the yeast from the hops and break material in the trub. Most brewers who reuse yeast — and store it for long ...
4
votes
3answers
4k views

Alternative/homemade yeast nutrient?

I forgot to add nutrient to my must when I put it in my carboy the other day (first time brewing mead). I fear I won't be able to get to my homebrew store before it's too late, so I'm wondering if I ...
1
vote
1answer
190 views

How to know how much starter to make from harvested yeast?

There are plenty of calculators that tell you how much starter to make for a specific amount of starting yeast and for a specific gravity of the wort. On packages/vials of yeast it tells you the ...
2
votes
0answers
122 views

If I live in a country where alcohol is prohibited, how to I deal with these obstacles? [closed]

I will have access to wheat and barley, only fresh, nothing malted. I have been reading online a little on malting. So this step doesn't seem to be an issue. My real issue is yeast. Assuming that all ...
1
vote
1answer
509 views

What is the proper way to supplement a yeast starter with oxygen via an aeration stone?

I have two yeast starters going on my two homemade stir plates. The stir bar or the stir plate for one of them is malfunctioning and I can not increase the speed enough to get a vortex going. It is ...
1
vote
3answers
572 views

Adding boiling water to raise temperature during fermentation

Beer was getting cold so in a desperate attempt to raise the temperature I put near boiling water into the container. So 450ml into 23litres of beer. The beer had only been brewing for 4 days. Will ...
1
vote
3answers
651 views

What happens if I Double Brown Ale

I'm thinking about making something like Frambozen from New Belgium from brown ale and added raspberries. However it's more of a sipping beer / higher alcohol content than the regular brown ale. ...
10
votes
6answers
1k views

Does suspended yeast contribute to high SG?

I've got a SMaSH beer (Baird Maris Otter and EKG) finishing in primary. It's been fermenting for just over a week. Starting Gravity was 1.046. I mashed at 154F for 60 minutes. Fermented with WY1335 ...
4
votes
2answers
557 views

How long does harvested yeast keep

Just like the title says: how long does harvested yeast keep? I am assuming to keep the yeast you have to store it in the refrigerator, right?
4
votes
4answers
281 views

Which strains of yeasts are the cleanest for warm/hot fermentation?

I am from Puerto Rico and the temperature here is like summer all year round(between 75 to 95*F) , and I really want to know the cleanest strains of yeasts for this kind of temperature. (clean ...
13
votes
3answers
3k views

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 ...
1
vote
1answer
163 views

Vacuum sealing harvested yeast

Looking at this video I had the idea of vacuum sealing yeast that I harvest from my beer batches to better protect it from bacteria/mold. My plan is to rinse the yeast with boiled (sanitized) water ...
0
votes
2answers
165 views

Pitched yeast into head of wort, will this delay/ruin its effect?

I am a first time home-brewer. Followed the instructions to the letter. When I added the cold water I "splashed" it in to aerate it. The wort had a large head at the time of pitching the yeast. Will ...
1
vote
1answer
140 views

Does Thomas Hardy use a separate bottling yeast strain?

Combing through the miriad different ideas about brewing a Thomas Hardy clone, I've become confused about what the consesus is about how "the real thing" is brewed. WLP099 is associated with "Thomas ...
5
votes
2answers
331 views

Where can I find information about the yeast Saccharomyces Bayanus?

I was able to find plenty of information about the ale yeast S. Cerevisiae and lager yeast S. Pastorianus, however information about the wine making yeast S. Bayanus appears to be more difficult to ...
9
votes
2answers
2k views

does starsan kill yeast

Is Starsan effective against yeast? After resuming homebrewing again after a 2 year break, I started having pellicle appearing on my starters (after fermentation had completed), which has now spread ...
1
vote
4answers
3k views

Bad (dead) yeast? What now?

Brewed an ESB yesterday, pitching Wyeast 1028 @ 70 degrees F. Stirred and shook carboy for oxygen, then airlocked and moved moved to the basement. This morning, carboy is @ 71 degrees F with NO ...
3
votes
2answers
274 views

Purposely underpitching

So I am planning a roggenbier, partially because I want to try one, but largely to grow up a cake to make 15 gallons of weizenbock. Hefe's are ok in my mind, but my palette basically just wants ...
5
votes
1answer
1k views

When should I add orange peels to my homebrew?

I've been planning to experiment with orange peels for a while now, but I don't know when to add them, when should I throw them in? Last 15 minutes with the aroma hops? At flame-out? After primary? I ...
1
vote
3answers
3k views

Pitched Yeast at 80-85 deg. Problem?

I pitched English Ale yeast (white labs) around 80 deg, not realizing it was that warm. Relative temp in the room is 68, but wort will not cool down below 80....strange! Its been about 24 hours at ...
2
votes
2answers
3k views

How long can a yeast starter stay on a stir plate before pitching?

Two days ago (on Wednesday night) I made a yeast starter on my stir plate. I purchased a thermometer probe that I intend on modifying a fermentation bucket with, which I thought it would arrive today ...
1
vote
1answer
192 views

Why Wouldn't Chilling a Yeast Starter Cold Crash or Inactivate the Yeast? [duplicate]

We boil DME and water to make a solution with an OG of 1.040, pitch the yeast and place it on a stir plate for a couple of days to make our yeast starters. After this, it is commonly suggested to ...
1
vote
2answers
300 views

High OG content for yeast

I had a higher than expected OG in my homebrew. It was estimated to come out to 1.060 but instead ended up at 1.076. The back of the yeast I used said that it is good in a brew of up to 1.060 OG. The ...
7
votes
6answers
3k views

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 ...
0
votes
2answers
415 views

Total Volume of Yeast Starter in Regards to Evaporation from Boiling Wort

Today I did my first yeast starter. I purchased the 2000mL flask and DME from northernbrewer, and it came with instructions for doing both 1000mL and 2000mL batches. It suggests 1000mL for 5 gallons ...
1
vote
1answer
339 views

Yeast Starter Vortex Size

I've read online that the size of the vortex in a yeast starter does not matter. Why is this true? When I was experimenting with water yesterday, I created a monster vortex (very cool) and could see ...
1
vote
1answer
444 views

Flowers of Wine (Problem)

Context: I am currently working on a batch of jalapeno-cranberry wine. It's been in primary for five days so far and I am beginning to suspect I have flowers in my wine. I was not too concerned ...
5
votes
2answers
1k views

Pausing a ginger beer plant

I am making ginger beer, the old fashioned way with a plant. The plant is a jamjar which I feed with one teaspoon of sugar and powdered ginger daily. I'm going on holiday soon, for several weeks. ...
2
votes
1answer
189 views

Yeast starter left out of refrigerator, is it OK?

I created a yeast starter from some yeast from my primary fermenter and some DME following standard steps and the fermentation looked great. However, I went on vacation and forgot to put my yeast ...
1
vote
2answers
974 views

Lager yeast fermenting at 25-30C

The summer is approaching, and I would like to make some experiments using lager yeast, just completely out of its temperature range. I guess that steam bear was made using lager yeast at higher ...
1
vote
1answer
65 views

“Quiescence Yeast” Or will my yeast-to-be survive a travel to the caribbean?

This is a related question, but not a usefull one to me :( I intend to buy liquid yeast from northenbrewer (WLP099 in case you wonder) and I currently live in Venezuela, a very hot and sunny place ...
4
votes
3answers
2k views

Wyeast pack arrived already inflated - keep in the fridge or not?

Like the question says, the pack arrived pre-smacked! I'm making a yeast starter before I brew so that'll tell me whether the yeast is ok, but what I need to know is whether to keep it in the fridge ...
0
votes
2answers
1k views

What to expect from champagne yeast?

I bought a pack of champagne yeast, but not sure why, just to try it :) What differences should I expect compared to a "normal" English ale yest?
0
votes
2answers
504 views

What volume of brewer's yeast to use for yeast-nutrient-less dandelion wine?

I'm trying my first, 1-gallon batch of dandelion wine. Some recipes say "1 packet" of brewer's yeast, and mine doesn't even specify an amount. It also specifies to add "yeast nutrient," which my ...
2
votes
1answer
219 views

Dropped the temperature as it was getting out of control, did I shock my yeast?

Making an IPA with an OG of 1.069, we pitched at 70°F with good ol' Safale US-05, just dry out of the packet as I've always done with US-05 with good success (I tend to trust it a little too much ...
0
votes
1answer
759 views

Problems with Wyeast London Ale 1028?

I had a brew day yesterday and ran into something a little odd. I smacked a pack of Wyeast London Ale #1028 berfore I started my routine. After everything was said and done with the boil it had been ...
2
votes
4answers
214 views

yeast cell count importance

I have a had a question for quite some time that nobody has been able to answer. The question is more academic or theoretical than it is practical. Perhaps the community here is a tad smarter ...
3
votes
2answers
606 views

Wyeast 2124 Bohemian Lager for Bock - too late for diacetyl rest?

I really wasn't ready to do a lager, but I wanted to do a Bock, so I requested California Lager yeast. My supplier failed to make the substitution and sent me home with Wyeast 2124 Bohemian Lager. I ...
3
votes
2answers
971 views

Why is my attenuation so low?

Here's the recipe: > Recipe Specifications > -------------------------- > Boil Size: 7.37 gal Post Boil Volume: 6.38 gal Batch Size (fermenter): 5.50 gal Bottling Volume: 5.50 gal > ...
2
votes
2answers
689 views

Yeast pitching and wort cooling

I'm making an American Brown Ale and added liquid yeast to the wort that may have been too hot. The yeast was in the fridge and out to cool for 45 minutes. My guess is: Wort temp: 26-27C or about 80F ...
7
votes
2answers
1k views

Yeast nutrient schedule for meads?

Somewhere I remember a mention that a "more-modern" technique in brewing meads involves a regular schedule of adding yeast nutrients while in the primary. I was never able to find the reference again ...
3
votes
1answer
284 views

Making a starter without DME?

Planning to start to use liquid yeasts and will need to do some starters. It is hard to get hold of DME over here (I can get some hopped LME, though). I was thinking on doing a starter from grains, ...
7
votes
1answer
285 views

Does using a fining agent effect the flocculation of yeast?

I'm doing a series of smash beers all using the same yeast same temp same grain. I'm noticing a big variation in flocculation on the current batch (forgot the Irish moss oops) WLP001 by the way. Im ...
1
vote
1answer
250 views

Yeast Starter Stopped after ~20 hours

I am trying to make skeeter pee without the slurry from a previous batch. so I wanted to make a starter to make sure my yeast were happy guys. I took 3 pints of water to 1 teaspoon of yeast nutrients ...
1
vote
1answer
474 views

Make root beer without a refrigerator

All the recipes for root beer end with, bottle up your root beer in a plastic bottles. Put it away and monitor the bottles when they become hard they are ready, 2-3 days. Put them in your fridge to ...
3
votes
1answer
336 views

How long to keep in blowoff tube?

Today I learned what happens if there's too much yeast and a container too small (I have a 1 gallon batch). So according to instructions I sanitized a hose and connected the hole in the fermentor and ...
5
votes
3answers
5k views

How much distillers yeast do I use in a 5 gallon batch of beer?

The recipe I'm working on calls for the use of distillers yeast half way through my primary fermentation (among other things like plenty of sugar, aeration, etc...). Problem is, it doesn't really ...