alc. vol.

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williamoid

alc. vol.

Post by williamoid » Sun Sep 28, 2008 9:09 pm

hi all, your thoughts please on this. i seen this on youtube
og 1.046 - fg 1.006 = 0.04 x 131 = 5.24 alc/vol.

sorry, had a few when i wrote this last night. what i meant to write is,
is this a true equation to work on?
Last edited by williamoid on Mon Sep 29, 2008 8:17 pm, edited 1 time in total.
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RichardG

Post by RichardG » Sun Sep 28, 2008 9:24 pm

The calculation's as near as makes no difference. Why do you ask?
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Aes9471

Post by Aes9471 » Sun Sep 28, 2008 9:32 pm

Plus 0.2 for secondary fermentation, I'm not really anal HONEST :shock: :oops: :lol:
On a serious note have noticed someone added on a post a 'clicky' to a web page with a different calculation, which gave a much higher reading. Which do you believe? Personally I always tell SWMBO the lower estimate and my mates the higher one!
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StrangeBrew
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Post by StrangeBrew » Mon Sep 29, 2008 8:50 pm

I've always used to following...

Discard the decimal point.
1046 - 1006 = 40 / 7.4 = 5.4%

I've seen others divide by 7.46 and would like to know which is the most accurate although if it's an enjoyable pint who really cares?!
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vacant
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Post by vacant » Tue Sep 30, 2008 10:40 am

StrangeBrew wrote:I've seen others divide by 7.46 and would like to know which is the most accurate although if it's an enjoyable pint who really cares?!
HM Revenue and Customs?

Then remember to add something for priming sugar:

If you use cane sugar for priming and it fully ferments then half that weight results in alcohol. 85g sugar -> 42g alcohol so volume is 42 / 0.79 = 53ml. In 23l, that's another .23%

All measurements at 20 Celsius.
I brew therefore I ... I .... forget
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Prozac

Post by Prozac » Tue Sep 30, 2008 12:36 pm

vacant wrote: HM Revenue and Customs?
:shock: :shock: :shock: Well that's cleared that up :lol: :lol: :lol: :lol: :lol: :lol: :lol: I need a beer
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vacant
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Post by vacant » Tue Sep 30, 2008 12:50 pm

Prozac wrote: :shock: :shock: :shock: Well that's cleared that up :lol: :lol: :lol: :lol: :lol: :lol: :lol: I need a beer
Yeah, that'll teach him for asking for "accurate" :D
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StrangeBrew
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Post by StrangeBrew » Tue Sep 30, 2008 8:26 pm

vacant wrote:
Prozac wrote: :shock: :shock: :shock: Well that's cleared that up :lol: :lol: :lol: :lol: :lol: :lol: :lol: I need a beer
Yeah, that'll teach him for asking for "accurate" :D
:oops: I did ask for accurate and looks like I got it. :lol:

but I did say...
'if it's an enjoyable pint who really cares?!' :wink:
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