Gravity drops after reaching expected FG

[Brewer #450121]

Hi, I am using US 05 and my brew has been sitting at the planned FG of 1.010 for 4 days at 67F. Today ( day 5) it dropped another point. I was planning to cold crash today. Do I now give it more time???

 

[Josh Hughes]

So 9 days? Give it a few more.

 

[Brewer #450121]

Thanks. It took 12 days to reach 1.010, then sat 4 days at 1.010(cleanup time), then dropped to 1.009. I am using Tilt so can see the gravity numbers on a regular basis

Thanks again for taking the time to respond

 

[Josh Hughes]

OK, then you have plenty of time. My tilt will do that as well. Go ahead and crash it.

 

[Minbari]

1 point is not worth worrying about. That is within the measurement error of a tilt

 

[Brewer #450121]

Great thanks

 

[J A]

Tilt is good for trends and a very close estimate. It's usually right but number of factors - krausen crud, bubbles, temp changes, against side of fermenter, etc - can mess with the actual reading and cause fluke and glitches. You need to take a good hydrometer reading (with the sample at the proper temperature). It's safe to say that your beer is ready to crash.

 

[Dave Y]

Tilt is good for trends and a very close estimate. It's usually right but number of factors - krausen crud, bubbles, temp changes, against side of fermenter, etc - can mess with the actual reading and cause fluke and glitches. You need to take a good hydrometer reading (with the sample at the proper temperature). It's safe to say that your beer is ready to crash.

I've observed this too, but in ~80 batches of beer, covered in crud, or clean as a whistle in a lager, both my tilt units have been spot on with my hydrometer. Now, while it's in an active fermentation, I have seen some pretty wild variances - Kveik at temperature, French Saison at temperature, Bavarian wheat, etc. Once I cold crash, I usually drop 1-3 points in gravity depending on the brew.

 

[Josh Hughes]

I've observed this too, but in ~80 batches of beer, covered in crud, or clean as a whistle in a lager, both my tilt units have been spot on with my hydrometer. Now, while it's in an active fermentation, I have seen some pretty wild variances - Kveik at temperature, French Saison at temperature, Bavarian wheat, etc. Once I cold crash, I usually drop 1-3 points in gravity depending on the brew.

Mine is pretty much spot on each time as well.

 

[Minbari]

I've observed this too, but in ~80 batches of beer, covered in crud, or clean as a whistle in a lager, both my tilt units have been spot on with my hydrometer. Now, while it's in an active fermentation, I have seen some pretty wild variances - Kveik at temperature, French Saison at temperature, Bavarian wheat, etc. Once I cold crash, I usually drop 1-3 points in gravity depending on the brew.

And if you have the tiltpi server, you can add calibration at multiple temperatures. Makes it even more accurate