Abbreviation: Alcohol By Volume. The percentage of alcohol in a given volume of liquid.

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Calculating the exact alcohol volume

Using a hydrometer is great for most people, but the geek in me would like to know the exact alcohol content of my brew. What would be the process, titration? And what chemicals would I need?
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Is 55% ABV “beer” actually beer?

BrewDog claims to have made a 55% ABV "beer" which they call The End of History. They have other high ABV "beers:" Tactical Nuclear Penguin is 32% ABV and Sink the Bismark! is 41% ABV. From what I ...
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3answers
293 views

What is a session beer?

What is the accepted OG and ABV of a session beer? What other qualities does a session beer possess?
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1answer
9k views

How to adjust alcohol content of a beer?

I have read stories about people brewing beer with an extremely high alcohol content, and am curious about how they do it. At a basic level, I know that alcohol is a byproduct of yeast breaking down ...
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1answer
3k views

Measuring the ABV of non beer/wine products

I sometimes make alcoholic ginger beer and alcoholic lemonade. How would one estimate the abv of something like that? Is it even possible?
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2answers
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How do I measure the alcohol of a fruit beer?

According to some recipes I have seen, a simple way to make a fruit beer is to make a regular "base" beer, and then rack it on top of the fruit after about a week of fermentation. In that case, how ...
6
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1answer
183 views

On scaling a recipe's gravity…

If I have a recipe for a beer that I'd like to simply make bigger, what should be taken into account when scaling the recipe? Imagine I have an amber ale recipe that I like. It comes in with an OG ...
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515 views

Is there open source web library for Calculating ABV or other brew related tasks

Is anyone aware of a good script or library free/Open Source that can be used on a web page to calculate ABV, I'm not looking for a sites that will do the calculation for you, I want to add the ...
5
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1answer
722 views

How is ABV calculated if distilled spirits are added to beer?

How would one calculate the ABV of a beer if distilled spirits were added? For instance, when making a beer recipe that called for adding bourbon as a flavoring agent. If you started with, say, 5 US ...
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Can I find the ABV of Cider using Original and Final Gravity

If I have the original gravity and final gravity of my hard cider (as measured by my hydrometer), do I determine the ABV using the same formula I would for beer?
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4answers
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How can I reduce the ABV?

I have a batch fermenting at the moment. I had expected the OG to be 1.05x but it was 1.06x. I generally have little problem with fermentation and expect the batch to come out at somewhere like ...
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3answers
109 views

Strong beer at 3%?

The O.G. was 13 Brix (1.053), and the F.G. was 8 Brix (1.031). According to the calculation, the beer is only approximately 3% ABV. But I tried a glass and it's gotta be closer to 5.5%. 20% of the ...
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Can the same method of producing 19% ABV Sake be used to produce high ABV beer?

I've been reading about Sake, and from what I gather, Sake brewers use a particular method to coax the yeast into producing 15-20% ABV. The method goes something like this: Combine a mold called ...
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2answers
78 views

Making a portion of a batch higher ABV

I am brewing my first kit beer. I want to set aside one gallon and make a high ABV batch. I am brewing a honey wheat and adding jalapeño. How would I make the higher ABV and what would the technical ...
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1answer
60 views

Dry-hopping creates CO2 pressure

I'm conditioning an IPA. After 2 weeks in primary and 2 in secondary all activity had ceased. Then I dry hopped fairly modestly - 75g or so - and 2 weeks into that the thing seems to have gone CO2 ...
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1answer
51 views

what is the F.G

The O.G. of my beer is 1.062 this is my recipe coopers stout tin 1.7kg stout enhancer 1.kg (looks like soft brown sugar and other sugars?) Glucose 500grams Honey 250 grams can anyone predict the F.G. ...
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4answers
264 views

Really strong beer's gravity (1.120) won't drop below 1.042

I've brewed my second beer, it's starting gravity was 1120. It didn't seem to want to get a gravity below 1050 after 9 days, so i added champagne yeast. Two days later it dropped down to 1042. 4 days ...
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2answers
60 views

Low ABV, but lots of fermentation activity

I just brewed a jalapeno ipa and am stumped as to why the abv is so low. The OG was 1.037. During the primary, the activity was very intense... like more bubbles than most other beers I've brewed. It ...
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1answer
26 views

Proper target for dilution

I made a recipe that was supposed to have OG 1.062, FG 1.012 (ABV ~6.5%). I forgot to note the target volume in the recipe (just the pre-boil volume), and wound up with a wort with OG 1.077. I chose ...
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1answer
2k views

Is it possible to calculate ABV% without Original Gravity? [duplicate]

Seems that when I was brewing my batch I forgot to take a gravity reading. Is there any other way to calculate ABV% without this measure? Thanks in advance
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1answer
386 views

Calculating Potential ABV

I've seen some tables online like the ones at American Homebrewers Association and Brewhaus Canada that list Potential ABV for different values of Original Gravity. My intuition tells me that these ...