Alcohol content

[Deneeve]

Hi all,
Can anyone enlighten me with how you find the alcohol content of your brew? Apart from falling over of course which would suggest a good alcohol content, but not necessarily an accurate one,as my mind wonders down various avenues in HBL- (HomeBrewLand) wondering what strength the lovely brew im drinking is?

Someone said,or maybe i've read somewhere its to do with your readings.....i'm currently enjoying victorian style bitter(one of my favourite brews so far) which i took a reading with my hydrometer at 1040 and then put into my pressure barrel when it read 1010 for a couple of days consecutively, i made exactly 25 litres and used 1 kg of sugar. It doesnt taste particularly strong but it does taste very good.

Thanks D.

[Jack Hackett]

Assuming you took your gravity readings at 20°C (this is the temp that most hydrometers are calibrated to) then your ABV is 3.9%

[Deneeve]

Thanks jack,
How do you work that out pal?

[fractureman]

Formula: %ABV = OG – FG + 0.5
7.46


OG = original gravity (before pitching yeast)
FG = final gravity (at kegging)

The + 0.5 is to allow for secondary ferment

[6470zzy]

(OG-FG)*131= ABV

1.040-1.010=.030

.030*131= 3.93% ABV


That is how I do the calculation.

Cheers

[196osh]

These guys ways are great and if you are willing to do the calculations fire away.

Here is one for the modern lazy man.

Tells you the number of calories too.