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

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filling the airlock

I'm brewing my first batch ever, and got a little worried that it wasn't bubbling after 24 hours as the instructions said it should. I've read a lot on here that says not to worry about a bubbling ...
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1k 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 ...
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50 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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0answers
12 views

Pulque recipe re-do [closed]

I am very interested in putting together some pulque. I saw your recipe but didn't know how much yeast to add. Can you share a more detailed recipe? Have you tried it since?
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41 views

Adding Apple/Caramel to Brown Ale

Fellow home brewer here with a question. My buddies and I are looking at making an Apple Caramel Brown Ale for this fall but are having trouble agreeing on a way to add the apple and caramel. We'd ...
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Is there a good way to estimate/calculate volume lost in fermentation(s)?

Last night I bottled a batch and realized that I lost a significant volume from the boil size. In the primary, I filled my 6 gallon carboy, and after the trub lost in primary and secondary, I bottled ...
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1answer
78 views

Soapy aftertaste in wine, fermentation temperature?

I generally find my homebrew wine (just from a regular kit) has a soapy kind of aftertaste. I'm wondering if this might be down to fermentation temperature or something, I'm taking as many precautions ...
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167 views

DIY Fermentation Chamber. Dual Zone Question

I am building a fermentation chamber and I was wondering if there is a way to have two zones but only use one cooler? My thinking is have two of everything except the cooler. So there would be ...
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3answers
59 views

Racking flavour - too strong?

i'm about to rack off my first batch of full-grain IPA. It's a small batch that has been fermenting about 14 days in a demijohn. I tasted some briefly when racking and it tasted very strong which is ...
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1answer
63 views

Accidentally stopped fermentation: how to restart?

I have 2 separate gallons of apple cider on they go, they were started about a week apart, now like the donut I am I have stopped the wrong one by adding 5ml sodium metabisulphite it has stopped it in ...
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1answer
58 views

Maximizing fruitiness from WLP002

I am looking to reproduce an incredible fruity aroma and flavour from a recipe I made a year ago. Looking at the recipe I am guessing it may be from the yeast. 3lb 2row 1lb Rye .13oz nugget @ 60 min ...
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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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Blending beer DURING fermentation, in the hopes to get beer back in balance with hops

I brewed an IPA intended to blow my hop socks off and missed my target OG by 20 points. DETAILS: Built this recipe in BeerSmith with an intended OG of 1.070 and IBU projected at 156. I pitched a 1000 ...
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6answers
12k views

How much effect does light have on fermenting beer?

If I keep my fermenting beer in my living room, should I cover it with blankets or otherwise keep it out of the light? I've seen topics on brewing referencing this, but most just settle for "why take ...
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2answers
107 views

Ginger Bug Smell?

I've made a new ginger bug from some pretty old ginger. The ginger has been sitting on my counter long enough for some of it to actually sprout new shoots, but it smells fine and doesn't show any ...
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1answer
47 views

Homebrewing Soda, Safety Concerns

I wanted to try making my own soda this summer, and finally got around to it 10 days ago. Here's the thing. I didn't have/use any specialized equipment. I boiled water with sugar ~15 minutes, and ...
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1answer
74 views

Best way to estimate remaining fermentable sugars?

This question is kind of for the chemists here, but I'm open to any ideas. In this question Denny Conn, who is far more experienced than me, asserted that a beer is likely finished fermenting, ...
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64 views

Yeast Problems!

Brewing a porter, pitched my yeast and started with a 1.056. My air conditioner broke for 1 day and the beer got to about 80 degrees after about 1 1/2 weeks of fermentation. Beer has been sitting at ...
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2answers
69 views

Should I worry about this smell?

I have stout fermenting and it has been in my carboy for a little over a week. Yesterday i opened the carboy to make a small intial addition of coffee beans and cacao nibs. Well when i opened it and ...
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1answer
30 views

Worried about extent of inflation of Wyeast 4766 package

My friend and I were trying to ferment some raspberries using the WYEAST 4766 Cider yeast. Now it's 1 day after we activated the package and it is still only partially inflated. Should we buy a new ...
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1answer
67 views

Which lactic acid bacteria are Homofermentative (or Heterofermentative)

I’m in the process of creating a custom culture, made of lactic acid bacteria, for a artisan yogurt drink and am having a hard time finding information on the metabolic categories of each strain. I ...
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2answers
58 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
36 views

American Stout addition Suggestions

Brewed a really nice American Stout last night. notes of chocolately roasted coffee all throughout. the predicted abv was 6% according to kit which i followed to a T, but as i was taking my OG i ...
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2answers
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What's the difference between top fermenting and bottom fermenting?

Some friends and I are attempting our first home brew. When the question came up I couldn't answer except to say that lagers are one and ales are another. I understand the some of the basic principles ...
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1answer
47 views

is 5 weeks enough for my double IPA?

I am Currently working on a double IPA with a predicted abv between 8%-9%..I am leaving it in one vessel. I was wondering if anyone thought 4 weeks in primary, then adding my dryhops and leaving for ...
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1answer
56 views

Is this a pediococcus infection?

A berliner weisse we forgot to bottle for around a month and a half. Did not introduce pediococcus or lactic acid in the fermentation. Did a sour mash before the boil so lactobacillus shouldn't have ...
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1answer
28 views

Must won't ferment, too sour?

I prepared a must for a mead last weekend (recipe below) and after a whole week there has been no fermentation activity. I took a pH reading and it came in at 4.4 - is it likely that the must is ...
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2k views

Fruit beer: should I allow it to ferment out completely?

I have a wheat beer in secondary that has been on 5 lbs of strawberries for 6 days. The flavor is phenomenal right now, just perfect. The strawberries continue to ferment actively, and I want to ...
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1answer
25 views

secondary or not? [duplicate]

Another noob question. I have been going back and forth on "im going to secondary my double IPA" and "Im just gonna leave it primary til completion" I keep reading contradicting theories and It's ...
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56 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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109 views

My elderflower syrup has (unexpectedly) started fermenting. How should I handle this to obtain something drinkable?

About 10 days ago I made some elderflower syrup. I used: 350g of elderflower 6 liters of water 8kg of sugar 160g of citric acid 12 lemons cut in pieces I left everything macerate for 2 days and ...
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3answers
136 views

Is oxygenating after brew day okay?

If you don't oxygenate on brew day, is it too late or can you oxygenate late? If so, are there limits?
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1answer
28 views

wine left to ferment

I have been given some more wine stuff to add to my collection. In the goodies there are 2 fermenting bottles with wine in it.(strawberry wine) they have been in the bottles just over 4 years . I was ...
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1answer
39 views

Do I need to use finings again after restarting the fermentation?

I recently made a batch of red wine but because the wine was too sweet I restarted the fermentation as I was advised. Of course I will need to de-gas the wine again, do I also need to use finings ...
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What is the purpose of secondary fermentation and is it necessary? [duplicate]

I've just started with homebrewing, i've made my first batch of extract over the weekend. I'm just wondering what secondary fermentation does, and is it necessary. The instructions that came with the ...
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3answers
131 views

What's wrong with my gravity?

I recently brewed an Imperial Red. It clocked in at around 1.072 on original gravity reading. My malt bill looked something like this: 12 lbs 5.0 oz Pale Malt (2 Row) US (2.0 SRM) 11 lbs Marris ...
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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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3answers
151 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
67 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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6answers
8k views

Can I use wine yeast to ferment beer?

Can I use wine yeast to ferment a beer? What sort of problems might I encounter that are unique to wine yeast trying to ferment malt sugars? What sort of flavor differences might I encounter?
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1answer
58 views

How will this beer turn out?

I brewed my first all grain beer on Sunday; everything went well barring one leaky tap and a slight blockage on the tap in my kettle due to a poor hop filter. It is supposed be an IPA style beer using ...
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2answers
743 views

Safely adding enzymes (e.g. Beano) to lower final gravity

I've heard a lot of mixed stories about people adding additional enzymes (Beano, GasX, etc) to their beers to drop the final gravity down very (sometimes undesirably) low. I've also hear mixed ideas ...
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2answers
92 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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5answers
326 views

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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3answers
1k 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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5answers
102 views

can I top off at 5.25 gallons instead of 5?

I have been brewing extract kits and was wondering if it'd be al right to top off at 5.25 gallons? Directions say 5 but I have never kegged a full 5 gallons, was hoping the extra quarter would get me ...
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7answers
46k views

If/When to move to secondary fermentation

Digression from What's the point of secondary fermentation? What are the good rules of thumb for determining a. whether to use secondary fermentation at all and b. when to move from primary to ...
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3answers
138 views

Can I add hops and sugar to fermenting beer?

just would like to know if its possible to brew a beer over multiple weeks.I was thinking of brewing my next beer by adding a different hop every week for 3-4 weeks.And at each time adding more sugar ...
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2answers
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Making wine from concord grape juice

I'm just about to start my first attempts at wine making. We bought a gallon of organic, concentrated, concord grape juice to use for some other recipes and I have so much left over that I'm going to ...
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2answers
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What would happen if you took raw grape juice and covered but did not refrigerate?

I'm curious about something that maybe someone can answer from personal experience. If I took red or concord grapes, crushed them, filtered the juice, covered it and stored it at an average ...