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Old 05-08-2009, 02:09 AM   #1
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Default Hydrometer & SG question.

I was curious, would a gravity reading after priming and bottling be at all accurate?

Would there be a significant difference between FG before priming or after?

I don't plan on having to take a gravity reading afer the fact, but I was curious as to why our FG is not taken after priming and conditioning.

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Old 05-08-2009, 02:35 AM   #2
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One of the main reasons to take a FG reading is to make sure that your beer is done fermenting and therefore ready to bottle...so there wouldn't be any reason to take another reading after you prime and or condition.

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Old 05-08-2009, 04:06 PM   #3
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If you forgot to take the FG, you could probably use the reading with priming sugar - the difference would probably be negligible (sp?) but not after bottling - the CO2 in a finished beer will adhere to the hydrometer and "lift" it, causing a false reading. Perhaps with lots of spinning and tapping you'd be close...

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Old 05-08-2009, 05:15 PM   #4
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Would it work if you let the beer (sample) get flat?

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Old 05-08-2009, 05:27 PM   #5
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Very good question because it seems like I always forget to take my reading until I have added the priming sugar and always wondered what effect it has.

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Old 05-08-2009, 08:03 PM   #6
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try on your next batch -
FG before bottling,
FG w/priming sugar,
FG 2 weeks later, with bottled beer allowed to go flat...

then post here and let us all know!
(I'll do the same if I remember )

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