The temperature of the wort during fermentation. This may be different to the ambient temperature since fermentation is an exothermic (gives out heat) process.

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2answers
321 views

What is the benefit of long fermentations/leaving beer on yeast for weeks?

I know the 'general' answers: "it allows the yeast to 'clean up' compounds", "it allows the beer to 'condition'", "it allows the flavors to come together", none of which I am satisfied with. My ...
3
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2answers
222 views

Can lowering temperature too rapidly result in stuck fermentation?

I have fermented my last few batches with a swamp cooler - putting my bucket into an igloo cube cooler filled with water and ice. They've all been ales. I usually start in the high 60s/lows 70s ...
3
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2answers
446 views

Diacetyl Rest on Cream Ale

Have a cream ale (OG ~1.059) that has been fermenting at the low end of US-05's range (57-59 degrees) for just about two weeks. Didn't test gravity, but still saw a decent krausen ring and airlock ...
3
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1answer
408 views

What is a swamp cooler?

What type of equipment do you need to build one? How do you use it? What are the realistic expectations of using one?
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3answers
2k views

Should I move primary to lower temp?

I'm brewing a dubbel and pitched a 1000ml yeast starter of Wyeast 1214 at 68F. It's fermenting in a room now with an ambient temp of 72F. Over the course of 30 hrs, temp has increased to 78-79F ...
2
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1answer
336 views

How early can I know if a brew is ruined?

Today I tried my very first brew using a Coopers DIY kit. I was told the Lager mix that comes with the kit probably won't taste amazing, but it should be hardy and forgiving for beginners that don't ...
2
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3answers
1k views

How does ambient/room temperature compare to fermentation temperature?

My first brew day is approaching and in preparation I have been monitoring the temperature of the room I plan to use. Initially I was seeing daily fluctuations from 16C to 25C as the heating came on ...
2
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1answer
269 views

What is the best way to measure temperature in a swamp cooler?

I am thinking about setting up a bucket-o-water/t-shirt swamp cooler for my primary fermenter. The ambient temperature is about 82degF and I would like to ferment an American Ale around 74degF. I have ...
2
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1answer
184 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 ...
2
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1answer
645 views

Side-effects of 'lower than recommended' fermentation temperatures?

I have a Ginger Beer kit on the go. It's sitting in the kitchen and ambient temps are ranging from 15 to 20ºC (59-68ºF). The beer was started 3.5 days ago and I was away for the weekend, I can see ...
2
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3answers
129 views

Brew stops bubbling at night

Yes - another novice question from me :( Our brew bubbles away through the airlock for most of the day, but when I come down in the mornings it is dormant (no bubbles for the 2 minutes I was looking ...
2
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3answers
700 views

How do I use this Digital Temperature Controller?

For my birthday, I asked my sister for a Digital Temperature Controller. Rather than buy the one from Norther Brewer, I found what I thought was a better deal from Pex Supplies. However, it looks like ...
2
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2answers
56 views

At what point on a Yeast's Optimal Temperature Range should the power to a Fermwrap be turned off?

I finally hooked a PowerSwitch Tail II up to my Raspberry Pi and Fermwrap. The RPi has DS18B20 temperature probes directly measuring the temperature of the wort by going down through the airlock. For ...
2
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3answers
2k views

Heating pad for fermentation

Is there any concern with warming up a fermentation by placing the bucket/carboy on an electric heating pad? Will it kill the yeast that settles on the bottom?
2
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1answer
117 views

Does Low-Attenuated Wort due to Low Temperature have a Higher Propensity to Bottle-Bomb while Bottle Conditioning at a Higher Temperature?

I bottle condition underwater with frozen water bottles to keep the temperature down. I probably bottle conditioned my last batch of beer beneath 60*F, and it didn't carbonate all that well, or at ...
2
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3answers
224 views

How to control temp between two fermenters in the same chamber

I have room for 2 5-gallon fermenters (ale pails) in my fermentation chest, and would like to conduct two fermentations at once. Typically, I insulate my temp controller's probe against a fermenter, ...
2
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4answers
385 views

Fermenter Headspace; Suitable (and cheap!) Containers for Split Batches

After Denny's article in the spring issue of Zymurgy, I'm anxious to experiment and split batches for experimentation with yeast pitching rates, strains, fermentation temps, and adjuncts. I had ...
2
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2answers
240 views

How to Properly Increase the Temperature of a Batch after Primary Fermentation

I've read tidbits how that after the first 3 days of fermentation, you would ideally raise the temperature of the carboy for the remainder of the brew. How, exactly, does one do this? Say the Wyeast ...
2
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2answers
406 views

Noob here… My second brew - am I brewing an ale or a lager, and did I stuff it up?

So I went to my local homebrew store to purchase a an "Aussie honey lager" extract kit but they were out of stock. The friendly man behind the counter helped me to re-create this kit by checking their ...
2
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1answer
246 views

Fermentation Schedule on a Biere de Garde

-TLDR version of the questions: How long could/should you keep fermented beer on the yeast at 72 degrees after reaching an appropriate final gravity before racking/bottling to minimize off-flavor ...
2
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2answers
1k views

US-05 Fermentation Temperatures / Top Cropping

Brewed a 1.060 OG IPA last night (extract), pitched a packet of US-05 reconstituted with 5 ounces of water. Pitched at 68 degrees, but I wanted a clean fermentation with minimal esters, so I have the ...
2
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2answers
2k views

Belgian witbeer: Which fermentation temperature in comparison to a Bavarian Hefeweizen?

I have recently made a Bavarian Wheat that all my "co-drinkers" liked quite a lot. I have fermented that pretty cold (18C/64F), since I don't like these beers when they are overly estery and tasting ...
2
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2answers
717 views

Which fermentation temperature should I favor?

I am doing a dual brew this weekend. First up will be my Engine 97 Steam Beer (aka California Common - see recipe here: http://www.lootcorp.com/recipes/engine-97-steam-beer.html - credit for original ...
2
votes
1answer
304 views

Will this Pilsner technique work?

I want to brew the Brewers Best Continental Pilsner with the given equipment and parameters that I have, which is not much. My basement is averaging 40-45°F (4-7°C) degrees which I think should be ok ...
2
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2answers
239 views

What to brew in the summer?

What kind of beer can I brew in the summer (30C by day, a few less by night), without special cooling equipment? Anything special (but not too coplicate/expensive) I should do?
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1answer
412 views

Initial fermentation temperature for saisons?

It's summer, and that means that my basement is too warm for English and American ales, but I did make a really fine French farmhouse ale (saison) at fermentation temperatures of about 75F. I've ...
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3answers
490 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 ...
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3answers
240 views

Does too Low of a Temperature affect Taste?

I currently have 4, 5 gallon batches going. After a bad episode of brewing at a high temperature (72-75*F) for 2 batches, I have gone in the opposite direction and aim for 60*F, and frequently dip ...
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3answers
875 views

US-05 Fermentation Temps

On the package of the US-05 it says it's temperature range is 58-75F. However, all the reading on forums I am finding people tend to the lower end of the spectrum, even calling upper-60's to be too ...
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2answers
576 views

When to conduct diacetyl rest?

I have my first lager fermenting at 50 degrees (pitched Saturday 8/18 at 11pm, tonight will be pitch + 5 days). Airlock activity started Monday AM, been going consistently since. The problem I am ...
1
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1answer
560 views

Kolsch fermentation temps and schedule

I'm brewing a Kolsch beer for the first time with a pretty straight forward recipe using WLP029 yeast. I've only brewed basic ales so far and I'm confused about the fermentation temps and times for ...
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1answer
300 views

BrewJacket - How does this Work and How can I replicate it?

https://www.kickstarter.com/projects/433436998/brewjacket-immersion-lager-beer-without-a-refriger I've spent the last year determining how I can combat the hot temperatures to brew beer. I resort to ...
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1answer
659 views

Day Three, still no apparent fermentation

During my most recent brew session I may have been a little too relaxed, and had a few too many homebrews during the process. I feel like I did everything right and kept everything sanitary, but ...
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1answer
86 views

Does Warming Up Carboy After Pitching Yeast to Fermentation Temperature Decrease Lag Time?

When I adopted proper aeration and a yeast starter, I decreased my lag time to roughly 12-14 hours. Recently I bought Ferwraps and have been using them. One night, I got the idea to apply the ...
1
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1answer
107 views

Regulating Temperature in Closet

I'm just starting to brew and I was wondering if my closet would be cool enough to properly ferment. During the winter my house is usually in the mid 60's. Should I still do something else to regulate ...
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2answers
798 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 ...
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2answers
204 views

Slow temperature rising vs equivalent fluctuations

I've read a few accounts of brewers using slow temperature increments to bring out particular flavours from the yeast that they're using. For example, stepping up 1C or so every day over a few days. ...
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3answers
135 views

Quick fermentaion, what should i do?

I made a batch of cider 6 days ago, and it started fermenting nicely, however now the bubbles in the air lock have slowed to nearly 1/min (according to my recipe means it's fermented) However this is ...
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2answers
149 views

Is it HOT enough for ya!

How do you determine the right temp? Should everything be brewed @ the same temp or can different temps offer different drinkable results? My first try at my own recipe was steeped @ 120 degrees ...
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1answer
46 views

What consequences arise from holding wort at a high temperaure after fermenation is 100% complete?

I just learned recently via this forum that temperature is most important during primary fermentation, which completes in (roughly) 7 days. I have fermwraps on my carboys. What would happen if I set ...
1
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1answer
161 views

Irish Ale Yeast - Strain Selection, Fermentation Temps, and Re-using Yeast

I am brewing an Irish Red Ale, followed by a Dry Irish Stout, both this week, and then I need to re-use that yeast within the following two to three weeks for an ESB (1.053 OG recipe was picked by a ...
1
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1answer
200 views

How Much (and How Fast) of a Drop in Temperature can (Ale) Yeast Tolerate? (And Preliminary Results from My Experiment)

I have rigged up a Raspberry Pi with some DS18B20 temperature probes that measure both the water in the swamp cooler and the beer directly and store the results in a MySQL database. I brewed a new ...
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3answers
2k views

Can Dried yeast function at a low temperature?

I started my first batch of home brew lager around 24hrs ago I aerarted it and it was at 20 Degrees celcius but does not appear to be fermenting..... I know people say I have to give it time as I read ...
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2answers
301 views

When is the most critical time to control fermentation temperature?

I know there is a similar question out there, but I am trying to ask for my own particular set u. If memory serves, I believe that is is in the first 48-72 hours of pitching yeast. This is when ...
1
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1answer
777 views

WLP 566 Saison Long Fermentation

I brewed up a saison/BGSA 13 days ago, OG of 1.088. Don't have the grain bill/fermentables handy, but there was a good bit of sugar/highly fermentable adjuncts. Pitched a 32oz starter with this ...
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2answers
431 views

Stuck Ferm? Celebration Ale Clone Gravity at 1.021

Celebration Ale Clone (extract kit) White Labs California Ale Yeast (liquid vial, no starter, I know next time I'll make a starter) Pitched at 68 degrees and good activity 18 hours later, got up to 71 ...
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1answer
62 views

Temperature of Wort hit 89*F when yeast has maximum temperature of 72*

... I rigged up a raspberry pi and connected it to a thermwrap to regulate temperatures for my wort. All was working swell until I made a slight tweak in the code, and commented out the section that ...
0
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2answers
58 views

Temperature of wort hit 50*F when yeast has a minimum temperature of 60*F

This is unrelated to the question I just posted here. (Yes I'm having a bad day regarding temperatures, both too hot and too cold!) My yeast had a temperature range of 60-72*F. It has been brewing ...
0
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2answers
491 views

Waiting to pitch yeast?

I came across a couple similar questions, but not exactly what I was looking for. I only have a short period where I have time to brew, but my starter isn't ready and some cooling equipment. Are ...
0
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2answers
319 views

Beer fermenting too cold?

My first brew is currently fermenting on its 6th day. I just checked the temperature and it was quite a bit lower than what I initially thought. The temperature in the room is 12'C (54'F) and the brew ...