Specific gravity/alcohol content

I've noticed that people on here often mention brews with an OG of 1060 or more, and FG of 1010-1020.
According to the little brewing book I've got, a rough estimate of alcohol content (%) is (OG-FG)x.14.
Using this formula, and allowing for priming as well, some of the brews people are making would have >8% alcohol! Surely that can't be right...

My brews generally have an OG of 1048 (the last three have been exactly that, by coincidence), and FG of 1010-1015. This gives alcohol contents of 5% or just under, according to the above formula.

Any comments?

Check this brew ....

http://www.homebrewersupply.com/PDF/DoppelBock Recipe list.pdf

OG1.116 FG1.016

Formulas suck (being an engineer I've come to realize this)

Try http://www.fortunecity.com/boozers/samsplace/24/beercalc.htm#

joeyuwp said:

Formulas suck (being an engineer I've come to realize this)

Try http://www.fortunecity.com/boozers/samsplace/24/beercalc.htm#

Click to expand...

Whoops, I mean formulae

Check out this site: http://byo.com/feature/1315.html

I've set up my own spreadsheets to use .129 as the factor for calculating ABV. (OG-FG) x .129 = ABV

High readings generally apply to spirits.

I always use this formula...



And I'm always waaaaaay drunk by the time I'm done so I know it works.

^^^ Wow, I hadn't seen that in a while. Kind of surprised that you could even still find it on the net. It won't help you with the alcohol percentage of your beer, but it will tell you the amount of temp loss when opening the fridge door for 5 seconds, versus 10 seconds. I was bored one day!

First post necromancing a 9 yr old thread. I think the OP probably figured this out by now.