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

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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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1answer
57 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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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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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
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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3answers
89 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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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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4answers
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
67 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
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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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
87 views

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
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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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
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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3answers
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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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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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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0answers
14 views

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
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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2answers
105 views

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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1answer
66 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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2answers
55 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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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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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
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
136 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
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
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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2answers
97 views

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 ...
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1answer
87 views

I don't know what I've got or if it's drinkable?

for several months now I have been squeezing my ripened citrus and storing it in an air tight bottle in the fridge. I drink or add it to something from time to time and continually add juice to it. ...
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1answer
149 views

Fermentis S04 vs.S05

I am trying dried yeast for the first time. I did up 100 litres of English IPA yesterday and I pitched 2xS04 into 50 litres and 2xSO5 into 50 litres. Anybody want to hazard a guess at the ...
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3answers
233 views

What are all the factors that contribute to short fermentation time?

I've got an event coming up and I've got one beer that I'm going to bring, but I'm thinking about brewing another. If I do that, I need to turn it around in about two weeks. Which is probably too ...
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3answers
46 views

Fermentation issue - Airlock overflow [duplicate]

I'm brewing my first batch ever, we did our best but something is going on in the fermentation and I'm not sure what it is. Here is a 30 sec video of the issue: ...
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1answer
57 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
25 views

No Activity or Krausen [duplicate]

Something that has never happened to me. Brewed early Sunday and hit 80+% efficiency. I used Wyeast London Ale that was fully bloated when pitched. Over 36 hours later zero activity. No krausen, ...
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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 ...
2
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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
75 views

does the fermenting process always produce enough gas to bubble the airlock?

does the fermenting process always produce enough gas to bubble the airlock? this batch has not bubbled (over 24 hrs)and the last batch I brewed did not bubble much at all but turned out alright.
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1answer
90 views

Estimating the ABV in finshed product

Is this a viable method?: In theory you can calculate an estimated ABV by using the formula 17*X%*YL. This means that 17 gr sugar produces 1% alc. in 1 liter mash. So if you know at what alc.% your ...
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2answers
49 views

How do we get this Imperial Wit to finish?

We brewed an imperial wit that wound up 1.070 OG. I used a 1.5L starter with Wyeast 3944, but I likely still underpitched. After a week fermenting at 68F/20C, gravity is still 1.035 and it's pretty ...
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2answers
68 views

Stalled Fermentation? Or too much body from high temp mash?

So I brewed a straight forward English style IPA with the following: O.G. 1.060 F.G. 1.015 (estimated from Beersmith) Current F.G. 1.020 10g Gypsum 11 lbs Maris Otter 1.5 lbs Crystal 30 1 oz ...
7
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5answers
344 views

Can I leave my hydrometer in the carboy to tell when fermentation is complete?

I was wondering if anyone leaves a glass hydrometer in their carboy during primary fermentation so that you don't have to take samples. I figured it would be an easy way to tell that the SG has ...
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2answers
150 views

Return samples from a fermtech wine/beer thief to a carboy

I just purchased this wine/beer thief so that I can take more regular samples over the course of fermentation. I plan to float my hydrometer directly in the tube of the thief, which requires me to ...
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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 ...