The temperature of the wort during fermentation. Often different from the ambient temperature since fermentation is an exothermic process (releasing heat).

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Will rapid ambient temperature drop kill yeast or just slow them down

I have just put on my first all grain homebrew (a porter) here in Melbourne, Australia. After a day or so it was bubbling away quite nicely. A couple of days ago the weather decided to change ...
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2answers
4k views

Which type of cooling system makes the best fermentation chamber?

There is already a general question about ways to control fermentation temperature. This question, however, is more specific - it pertains to active fermentation temperature control using ...
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3answers
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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 ...
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3answers
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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 ...
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2answers
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should i keep my carboy at current fermentation temp after moving from 75F+ to 68F?

I brewed an amber ale kit on Sunday (my second time brewing at all). Using white labs wlp008. I left the carboy upstairs and the fermentation was very rapid and extremely active for two days reaching ...
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3answers
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Maintaining Lagering Temperatures

I've got a Pilsner in primary that I'm hoping to start lagering this weekend. I don't have a refrigerator that can accommodate the carboy, so I'm thinking about keeping it in a largish lidded foam ...
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2answers
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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 ...
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4answers
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Temperature swing of 10+ degrees during fermentation

I'm fermenting a porter, and pitched the yeast at about 75 on Sunday night (4 days ago). Lively fermentation started the next day, and though the wort had cooled to about 68 the first night, the ...
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2answers
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How much time should a warm-fermenting yeast strain sit at the high primary temperature?

I made a batch of braggot (~46% honey) a couple of weeks ago, and used the Duvel strain (a pack of Wyeast 1388 and a vial of WLP570). Pitched at 65 and ramped it up to 82 over the course of 7 days. ...
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1answer
446 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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1answer
423 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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4answers
702 views

First Time Brewing…am I doing it right?

So I went to my local brewing store, and got a starter kit. It came with a 7 gallon fermenter, a siphon tube, a floating thermometer, bottle caper, bottle caps, bottle scrubber, and sanitizer. By the ...
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2answers
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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 ...
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2answers
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Best beer styles for warm fermentation environment?

What beer styles tend to work well with a warm (at least 70F, possibly up to 90) fermentation environment? In other words, what styles will be best to mask or work with the off-flavors produced?
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3answers
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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 ...
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1answer
254 views

Small Space & Apartment Brewing: Diacetyl Rest

When brewing a lager in an apartment, you will most probably use a small refrigerator for the lagering process. If the refrigerator does not allow you to choose the exact temperature, but instead you ...
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2answers
796 views

Should secondary fermentation be the same temperature that primary was?

Or is it okay for the secondary fermentation to be colder than primary?
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3answers
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At what temperature should a lager be fermented?

When fermenting a lager, what temperature should it be held at for best results?
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1answer
636 views

Fermenter Heating Belt

Is it worth using? I was thinking of getting one to use on my first fermenter for a german weissbier so that the yeast flavour and aroma is more present in the final result. By how many degrees does ...
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4answers
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Ale Fermentation Temp. Too Cold?

Recently, I've had a streak of hot fermentations. My primary vessel nears 80ยบ, and sometimes more. With my latest batch, I've moved to a much cooler part of the house. I expect it to consistently ...
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[WIKI] Fermentation Temperature Control Methods

What different methods do people use to maintain or control fermentation temps? This includes maintaining temps for both Ales and Lagers. For most climates, active control is necessary for doing ...
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2answers
151 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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Temperature Control for Fermentation

I am curious how everyone controls the temperature of their primary, especially those that live in the warmer climates. In Florida, where the temperatures can soar and remain in the 90's and above ...