The anaerobic process by which yeast convert sugars into alcohol and carbon dioxide.

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What is the minimum time required to have drinkable beer?

From reading What is the secondary fermentation debate? and If/When to move to secondary fermentation it appears that beer can be considered ready to consume (assuming force carbonation or a love of ...
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3k views

Ginger beer that lasts

I want to make a batch of alcoholic ginger beer. However, I know from past experience that one problem with ginger beer is that the bulk of the fermentation happens in the bottles, and I can't drink ...
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1answer
766 views

How little light can spoil a beer?

I build a fermentation chamber that has a small computer fan that is equipped with tiny blue led lights. Is it only UV light that can skunk a beer? What would the effect of this frequently run fan ...
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4k views

When is fermentation done

So, I'm totally new to homebrewing. About to start my first brew, and it's a complete kit with instructions. Supposedly, it can't go wrong. BUT, it says that fermentation is over in 16 days. I assume ...
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513 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 ...
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1k 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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2answers
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Fermenting 1/2bbl and 1bbl batches

As I start planning my pico brewery, I've been thinking about fermenters. I'd love some thoughts on ways to ferment 1/2 and 1bbl (15.5 - 31 gallon) batches. Options for when price is and is not a ...
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5answers
3k views

Using champagne yeast

I would like to make an IPA that is very bubbly and dry like a champagne. I'm assuming to get it really bubbly I would just bottle with champagne yeast, but to achieve the dryness would I also ferment ...
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4answers
112 views

Minimal neccesary time in primary/seconday for a barleywine-braggot

I am still rather beginner (so far a couple of batches), but for the last batch I have taken a brave (irresponsible) step and went for a barley wine-braggot beer. For batch of 22 l In have used +- 6 ...
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2answers
219 views

Spunding CO2 from 3 keg fermentors

I'm starting to ferment in kegs, and want to naturally carbonate my beers by using a spunding valve. My batches yield 3 kegs, and I'm already using a 4º keg to aerate them after no chill and after the ...
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417 views

Controlling exothermic heat from primary fermentation with A/C cooling duct

In terms of brewing with Ale yeasts, I understand that fermenter temps can increase up to 10 degrees, or more, than the ambient room temperature. As a "cheap" method for keeping the temperature of the ...
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871 views

Is my lager done fermenting? More yeast?

I put my lager in the primary fermenter roughly 30 days ago. The original gravity was around 1.060 and 5 days ago when I took a reading it was at about 1.013. Today it's at 1.012 - so it doesn't ...
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77 views

What exactly happens during lagering?

I've just made my first lager, it is currently lagering at 1 C. What is happening to my beer at this temperature? Is the yeast still active? And most importantly: What is happening at this temperature ...
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1answer
130 views

Conical verses flat based fermenters

Just to ask what is the general feeling of using a "Conical" fermenter rather than a normal flat based fermenting barrel.? I realize that you cannot ...
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3answers
2k views

Is it possible to do pressurized fermentation in a mini keg?

I have been keen on moving from bottles to use kegs in my amateur home brews. But because of lack of space and because I just like the size and mobility of the smaller kegs I'd like to try to use ...
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2answers
620 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 ...
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426 views

Rescuing a weak lager fermentation

I'm currently fermenting a spiced dark lager with an original gravity of 1.064. I began fermentation 2 weeks ago today with a White Labs 830 yeast that I made a starter with. The yeast was a bit old, ...
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2answers
419 views

Does the length of a diacetyl rest matter?

Does a diacetyl rest for a week or more adversely affect the beer in any way? With our busy lives it's easy to forget about a batch for a few days (especially when it's in the dark recesses of a ...
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243 views

What effect does the alkalinity of wort have on the fermentation cycle in beer brewing?

What effect does the alkalinity of wort have on the fermentation cycle in beer brewing?
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427 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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2answers
525 views

Open Fermentation Process

Can open fermentation be done simply by putting the fermenting beer in a bucket carboy and covering it with foil? The purpose of the foil would be to just keep airborne contaminants from falling into ...
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4answers
258 views

When bottling, is it better to use corn sugar or saved wort?

When preparing to bottle your beer after primary fermentation, most instructions call for adding sugar or corn sugar to kick-off the second fermentation in the bottle and carbonate the beer. I have ...
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2answers
198 views

Lead in primary fermentation

So, my floating thermometer broke while cooling off my wort and I didn't realize it until about an hour after I had pitched the yeast and fermentation had definitely already started. At first I ...
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3answers
286 views

'Auto-transfer' to secondary corny keg fermentors?

I've been reading some topics about corny-keg fermentors and became interested in that. So I was wondering: If I ferment in a sealed keg with the liquid side plugged into another keg, by its liquid ...
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4answers
2k views

Glass Carboy with bottom spigot - Can/should it be done?

My friends and I are just getting into homebrewing, and we've been throwing around some ideas to try to simplify things. One of those ideas is to use glass carboys with a bottom spigot in order to ...
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2answers
331 views

Brewed with honey and the yeast is not working?

I did my first beer using honey last night and the beer is not bubbling this morning as it usually does. Is this normal? Should I re-pitch the yeast or not?
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5answers
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Fermenting, carbonating and dispensing using the same (corny) keg?

I Brew In a Bag and do no-chill, space and time are limited. I just bought some kegging equipment and while looking at the Pico Brew project I noticed that one option in using their equipment is to ...
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11k views

Consistently high final gravity

I started brewing about a year ago, currently on my sixth batch, all using extract and some additional grains. My problem is that my beers consistently finish with a higher than expected final ...
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577 views

Is primary fermentation finished?

I'm making a doppelbock with an ale yeast, so I'm fermenting in the mid- to upper 60s. It's 11 days in and all the krausen is gone. The top is speckled with what appears to be bright white yeast ...
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3answers
349 views

Lost my grommet in the fermenter - what to do?

Brewed a nice RyePA last weekend and I just opened the fermentation chamber to find the airlock not bubbling. A quick peek at the wort confirmed a nice krausen in place. I pulled the airlock and ...
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4answers
10k views

Non fermenting cider

I extracted the juice and moved it to a container for two days(as per instructions)mixed the yeast with the sugar water and left for two days,then mixed together,but there was no fermentation,why ...
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1answer
152 views

Putting Yeast in a Tea Bag

When making apple cider, beer or white wine, in order to more easily clear up the liquid, can we put our yeast in a tea bag or a piece of cloth so that the alcohol would be produced inside of it and ...
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4answers
349 views

How do i clear the batch after fermentation?

I have tried to use many things to clear wine or fermented beverage. Things like cloth, paper towels and coffee filters, non of these work well, but what is the most effective way to clear out the ...
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Help! I added too much sugar for batch's recipe.

This is my first time brewing and my son didn't do anything to help matters. I was mixing my wort and was putting in the sugar. My recipe called for 1kg which is roughly 2.2 pounds, well lets just say ...
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4answers
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Calculating carbon dioxide production during fermentation

I know yeast ferments sugars into alcohol at a predictable rate, but is the same is true for carbon dioxide? Since I know the amount of sugars fermented though my gravity readings, shouldn't it be ...
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3answers
457 views

Too much sweetness and banana like aroma/taste

I've been brewing 6 batches of Ale and I've had problems with sweetness and banana like aroma and taste (esters probably). I think the problem is the fermentation temperature. My fermentation bucket ...
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2answers
1k 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 ...
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4answers
945 views

Longest time in carboy?

I've been extraordinarily lazy lately and have kept 2 of my beers sitting around for some time. What is the longest you've kept your beer on primary and still had good results? I'm hearing arguments ...
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284 views

Cider went too dry and too flat

I've been making a cider (for the first time)... it's been in primary for a week, and went to secondary for another three weeks. I used crisp apple cider from Trader Joe's as the base. OG was about ...
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900 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
74 views

Stalled Yeast Stirred

I stirred what I thought was a stalled yeast and I think I stirred too hard. What are the down falls of introducing oxygen after the fermentation?
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1answer
114 views

Why does my fermented beet kvass taste bad?

I took 4 medium beets, chopped them up in a medium dice, put the beets in a 1-gallon Pickl-It jar. I added 1 ½ tablespoon unrefined sea salt, added filtered water to ½ inch below lid, and closed with ...
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2answers
739 views

Mr Beer Fermentor Leaking

Found an old Mr Beer kit that had never been used. The malt and yeast that came with the kit had expired, so I bought replacements. I followed the directions in the booklet, and put the fermenter in a ...
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2answers
361 views

Foam Overflow - Residue on Carboy walls

I recently brewed up a Caribou Slobber from Northern Brewing. I had a foam over, I sanitized a new stopper, air lock and resealed the carboy. Now I have no bubbles in my airlock, and all of the ...
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1answer
363 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 ...
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2answers
6k views

Why did fermentation take so long to start?

I boiled and pitched a low-gravity (~1.033) Scottish Ale this past Sunday. The wort was cooled via immersion to under 75° F and then aerated via a whisk-on-drill contraption before pitching the ...
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2answers
2k views

What is the oily film on the top of my kit beer

I made a creme ale 10 days ago and I racked to the secondary after 4 days fermenting( don't ask ) . I tasted it yesterday and it taste very bitter with little to no flavor. When I transferred it to ...
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Premature Kegging - leave batch in keg or rack to carboy?

I kegged a batch of hefeweizen on Sunday morning and force carbonated. My all-grain recipe was a combination of several that I found online, but largely an original creation. The plan was to leave the ...
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1answer
387 views

Is there a simple rule of thumb for OG and fermentation time?

I just brewed my 5th batch, but for the first time didn't use a kit, but an online recipe. So now, I have no idea of how long to keep it in the fermenter before bottling. From what I understand, a ...
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2answers
1k views

homemade wine problem

My question is in my primary fermenter. If the airlock is not bubbling does that mean its not fermenting. I have two on the go one is bubbling and the other one is. What should I do?