Fireman-Mike
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Anyone know what the FG of Northern Brewers Irish red should be? The OG was 1.040
FG of Northern Brewers Irish red.
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dneubeck85
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I believe it's around 1.008-1.011
pellis007
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What yeast did you use? When I brewed this I used the Nottingham Ale Yeast which had an attenuation between 75-90%. If you used the Nottingham, with your OG of 1.040 you should expect an FG of between 1.010-1.004.
The formula is easy:
Attenuation % * OG = X then OG - X = Expected FG
.75*40= 30 then 40-30= 10 or 1.010
.90*40= 36 then 40-36 = 4 or1.004
If you used a different yeast, look of the expected attenuation % and recalculate. BTW, my FG ended up at 1.014 and the beer turned out great.
The formula is easy:
Attenuation % * OG = X then OG - X = Expected FG
.75*40= 30 then 40-30= 10 or 1.010
.90*40= 36 then 40-36 = 4 or1.004
If you used a different yeast, look of the expected attenuation % and recalculate. BTW, my FG ended up at 1.014 and the beer turned out great.
JoefromPhilly
Well-Known Member
The formula can be reduced to:
FG = (1 - attenuation) * OG
Example: FG = (1 - .75) * 40
FG = (.25) * 40
FG = 10 which means 1.010
I brewed the Irish Red Ale from Northern on Saturday. My OG was 1.045 I smacked the yeast packet the day before, and used a large air stone with an aquarium pump to aerate the wort before adding the yeast.
FG = (1 - attenuation) * OG
Example: FG = (1 - .75) * 40
FG = (.25) * 40
FG = 10 which means 1.010
I brewed the Irish Red Ale from Northern on Saturday. My OG was 1.045 I smacked the yeast packet the day before, and used a large air stone with an aquarium pump to aerate the wort before adding the yeast.
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