Originally Posted by waskelton4
The gravity readings are affected by temperature and charlie's chart should give you the correct reading..
that being said.. (i'm guessing here, somebody correct me if i'm wrong)
If you take the OG and FG readings at the same temperature then your ABV calculation should still be correct..
if the OG and FG readings are at different temp then it will be off.
and after all is said and done..
you'll still drink the beer
I was kind of thinking along these same lines. The problem is my math skills aren't good enough to know if that would work out or just make me look stupidBut
, if what's being measured is liquid density and this needs to be done at a certain temp, then couldn't the readings be wrong? In other words, maybe the OG and the FG (if both measured at the same temp) will give you a correct reading as far as getting a ballpark calculation or to show that your brew is good to go but not necessarily a "true" ABV reading.
I don't know how or why but it kind of reminds me of the old "what weights more a hundred lbs of bricks or a hundred lbs of feathers?"
Don't mind me, I have no clue what I'm talking about