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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Temperature controller that can be accessed by a mobile?

I ferment my beer in a fridge located in my summer house. I've been using STC-1000 but one of it's drawbacks is that there is no logging of temperature. Is there any better thermostat that can control ...
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3answers
49 views

How to add temperature measurement and control to my Brooklyn Brew Shop beer kit?

My wife got me this beer making kit for my birthday. The first two brews failed horribly due to bad sanitation, but the third one, an American Pale Ale, turned out alright. The only thing I didn't ...
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5answers
2k views

How Should I Place a Digital Thermometer into My Fermentation Chamber and Keep it Airtight?

I have a setup with a raspberry pi and two DS18B20 digital thermometers that measure the temperature of the ambient air and the water in a swamp cooler that I place my fermentation chamber in. I was ...
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1answer
47 views

Kettle souring with lactobacillus - hot plate?

Researching a Berliner weisse and have decided that I will be doing a kettle sour. Lactobacillus likes to be around 45°C from what I have read so far. Currently my thinking is to transfer the kettle ...
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3answers
166 views

What happens if I ferment a lager at room temperature?

I was wondering what are the effects of fermenting a lager at room temperature as now I don't have any way to keep my fermenter at the low temperatures required. I have read that when yeast ferments ...
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1answer
64 views

What happens if fermentation happens at wrong temperature?

What will happen with my beer if fermentation takes place either at a too hot or too cold temperature? What will be the effects on the flavour?
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2answers
431 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 complicated/expensive) I should do?
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17 views

What can I brew when it's hot outside? [duplicate]

My friend borrowed some of my hardware and was slow to give it back. Over two months slow. So I'm way behind my schedule and it's only about month of temperatures cool enough to get fine ale ...
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5answers
160 views

Fermentation temperature for an IPA

I haven't found a global agreement on these topics. Let's suppose that the yeast is American (such as Safale US-05). Then: Which is the ideal (primary) fermentation temperature for an IPA and why? ...
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2answers
100 views

Is there a benefit in rising fermentation temperature for dark ales?

I am making a porter, and just started fermentation a couple of days ago. I have never manipulated temperature before, but have read that this is vital when making pilsners, so got curious. Is there ...
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2answers
140 views

Is anyone aware of a mini refrigerator model with a flat bottom for use as fermentation chamber?

Searching like crazy to find a mini refrigerator with a flat bottom. Any model will work, as I am new to this and only brewing 1 gallon batches. Ideally it would hold a 5gal carboy so that I do not ...
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3answers
102 views

No bubbling after 3 days and no SG reading at start

I'm doing my first brew and it doesn't seem to be going too well! I know there are loads of questions along these lines but I couldn't find one that matches my scenario closely. I did all the prep ...
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Help - Wort dropped to 59 degrees (beer temp)

I need help knowing what to do. My breaker tripped on my fermentation chamber and my Wort dropped to 59 degrees (beer temp). This was high gravity ale using Safale us-05 (2 packs, rehydrated ...
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1answer
72 views

Question about the diacetyl rest process

When producing beers that must have a "clean" / "neutral" flavor like lagers, usually the fermenting temperature is low to prevent off-flavors to show. But then, is recomended to apply a diacetyl rest ...
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5answers
782 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 yeast=...
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14answers
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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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1answer
129 views

Fermenting mead: low vs high temperature

I'm planning to make a batch of dry show mead (white wine experience). I have Lalvin 71B-1122 Narbonne yeast, and fermentation temperature range for it is from 59-89° F (15-30°C). Lets say how ...
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1answer
80 views

Temperature for wild-yeast fermented cider

I just bought 10 gallons of freshly pressed unpasteurized apple sweet cider. I am breaking it into two batches, planning to ferment one of them with french wine yeast and the second one will be ...
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2answers
76 views

Fermentation temperature control [duplicate]

I have an old refrigerator that I use as a fermentation chamber for my beer. It can hold two fermentation buckets. It is connected to a STC-1000 temperature controller so it keeps the temperature ...
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4answers
1k views

Safest way to heat an (enclosed) fermentation chamber

The topic of keeping a constant temperature inside a fridge fermentation chamber/keezer/kegerator appears to pop up regularly. Using a dual temperature control (in my case an STC-1000) there are ...
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3answers
135 views

Dynamics temperature measurement

We fight to keep the fermentation temperature controlled, usually constant, but the fermentation is an exothermic activity, so in one side we try to remove energy, and in the other (inside, mainly in ...
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6answers
2k views

Networked/Connected Thermometer for Measuring Water in Swamp Cooler

I was hoping to put together an information system that could measure the temperature of the water in a bucket where I place my fermenting-bucket and notify my smart phone when I need to replace the ...
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2answers
74 views

Help! Started my lager at 16degs C for 3 days (instead of 14C) - ESTERS!

Good day! Brewing a Czech pilsner OG 1.046 (brought it down from 1.056) Yeast: Wyeast 2278 (1 litre starter) - 10-14 degs range 22L batch My temperature control on my fridge said 14degs but a ...
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2answers
76 views

Why is the primary stage of fermentation of wine important?

Senior chemistry student, whilst I know the main reason, I would like to know more of the chemistry behind it.
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1answer
89 views

Pitched dry yeast into 57F wort, underfilled the fermenter with water… have I ruined my batch?

So, I was brewing my Brewer's Best Kolsch LME kit, and I made four errors. First, I skipped rehydrating, yielding to the boxed instructions instead of the packet. Second, I overestimated how cold my ...
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77 views

Heating after fermentation?

What's the general consensus on leaving a heat source turned on after fermentation has complete? I'm doing an Imperial IPA which should finish fermenting in 4-5 days going by previous experience with ...
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3answers
176 views

At what point in fermentation does temperature no longer influence flavour?

I often read about ramping up the temperature to increase yeast activity and attenuation towards the end of fermentation. I used to have some really funky tasting brews before I started strict ...
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1answer
86 views

Fermentation Temperature

I have a quick question. I've been looking for an answer, but didn't find a clear answer. So, I'm making an IPA. Right now the air temperature in my closet where I keep the carboy is 67-68F. This is ...
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265 views

A side by side comparison of open vessel vs closed vessel natural temp rise during fermentation

Would an unjacketed open fermentor, ferment cooler than an unjacketed closed system, given everything else equal. The idea being the ease of releasing strain and pressure on the yeast in an open ...
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259 views

Why every brew has a bitter malty aftertaste?

Every of 5 previous brews (lager, pilsner, pale ale, IPA) have had a somewhat bitter and malty aftertaste to them. It's not too off-putting (except the lager) but is clearly there, yet not present on ...
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2answers
92 views

how to stop fermantation in my locally made millet drink

I make my own local millet drink sweetened with malt sorghum. But I want to keep it free from fermentation for weeks. How? I have sorbate but is not working.
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1answer
65 views

Optimum Fermentation Temperature

I am planning on brewing a wheat beer with Danstar Munich Wheat Beer Dry Yeast. I didn't realize until I had already made the purchase that the optimum temperature for fermentation was 55-65. I don't ...
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0answers
29 views

Is there a way to estimate the actual temperature where the yeast ferments without having a sensor inside the carboy? [duplicate]

I was reading an article on fermentation temperature control where it says, However, since yeast growth and fermentations are exothermic and therefore generate heat, figure that the temperature ...
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1answer
182 views

my temperature is too high what can i do?

i have just added all the ingredients for my first coopers lager beer kit. I am aware that my temperature is too high at 32degreesc and the kit says to be from 21-27. will this ruin it? i heard it was ...
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2answers
1k views

Am I fermenting homebrew kit at too low a temperature

Total newbie here so sorry for the very basic question. I started doing a the Coopers Lager kit last night (using the standard Coopers Homebrew start kit set up). It said in the instructions to add ...
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1answer
210 views

Lambic fermentation/aging temperature

I am anxious to start a batch of lambic, but have some reservations timing wise about the temperature in my basement currently. My basement goes from around 45 in winter (now) to 60-65 at the end of ...
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2answers
241 views

What happens if beer ferments below the optimum temperature?

I am currently brewing an Irish Red Ale. I went away for a few days, and when I got back I discovered the heater had broken at some unknown time. As a result, the ambient temperature dropped to about ...
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1answer
300 views

WLP036 (Düsseldorf Alt) and cool temperatures

I am fermenting an alt in my cellar using WLP036 (Düsseldorf Alt). Pitched a 2 litre starter into 21 litre 1.051 wort. Fermentation was extremely vigorous at 16 C ambient temperature for 36 hours, ...
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2answers
137 views

Which temperature do I ferment at: the recipe's temp or the yeast's recommended temp?

So, I'm trying to brew a Mexican lager today. What I've done is taken Palmer's Cold But Not Baroque recipe and tweaked it a bit. However, instead of using Bohemian lager yeast, as the recipe calls for,...
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1answer
331 views

DIY BrewBug based offerings?

BrewBug, is a neat little toy that essentially has a "floating bob" that measures the temperature and specific gravity of the wort as it is fermenting, allowing for niceties like changing the ...
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23 views

What are the characteristics of a fusely beer? [duplicate]

I have heard that too warm a fermentation createds "fusely" beer. What are they and how can I tell if I have this problem?
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2answers
120 views

Will a yeast that ferments at higher temps stop fusels?

I have trouble with controlling temps and do not have much room for my growing collection of fermentation bins but I'm trying the swamp cooler for my 5L DemiJohn white wine kit. I'm gonna get some new ...
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3answers
2k views

Going Below Optimum Yeast Temperatures (For Ale in Particular)

So I understand that going above the optimum yeast temperature specified is a bad thing and will cause major off flavors. But what happens when you go underneath it? For example, I am currently ...
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1answer
3k 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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4answers
14k views

Can fermenting temperatures affect a beer's taste?

I'm putting together an "all glass" kit with two carboys and want to brew a DIPA but I'm a little concerned about temperature ranges where I'll be fermenting. I'm looking at somewhere between 15-18 ...
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1answer
60 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 ...
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2answers
4k 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 ...
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4answers
2k views

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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80 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 ...
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1answer
84 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 ...