attenuation help needed.

[eric19312]

one more note is that if you data log your temps, or how often your ferm chamber cooling cycles, you can easily see where the exotherm is to determine when you'd want to raise temps, the exotherm being when the majority of sugar to alcohol/CO2 is happening.

I’m curious about how you would use this information. I’ve been logging temps... what do I do with the information?

 

[balrog]

I have the Brewpi system using a laptop, and view the graph thereon where beer temp, fridge temp, and room temp are probes being logged. When the fridge temp starts cycling faster, and going lower, to keep the beer temp stable, I know that there's heat generated. Looks like zeeees! (Grey line=room, green line=beer, blue line=chamber)

 

[eric19312]

I have the Brewpi system using a laptop, and view the graph thereon where beer temp, fridge temp, and room temp are probes being logged. When the fridge temp starts cycling faster, and going lower, to keep the beer temp stable, I know that there's heat generated. Looks like zeeees! (Grey line=room, green line=beer, blue line=chamber)
View attachment 550527

Ok cool

What in that graph told you to start ramping temps when you did?

 

[balrog]

Yeah, about that...I did not ramp until after I saw the exotherm finish due to stuff/things/Life happening. I do normally wait until I see the exotherm finish then ramp, but I try to ramp as soon as it's coming out of that.

 

[6midgets]

I wanted to thank everyone that contributed to this thread. I tried some of your suggestions and I’m happy to report a beer with a F.G. Of 1.010. I brewed a NEIPA using
8lbs of 2-row
1lbs of flaked oats
1lbs of flaked wheat
Mashed at 149 for 60 minuets
Had a starting gravity of 1.045
Pitched one pack of US-05
Fermented at 66 degrees stepping up one degree a day till reaching 72 degrees
Finished with a gravity of 1.010. I checked the gravity with two different hydrometers the other one read 1.008

 

[eric19312]

I wanted to thank everyone that contributed to this thread. I tried some of your suggestions and I’m happy to report a beer with a F.G. Of 1.010. I brewed a NEIPA using
8lbs of 2-row
1lbs of flaked oats
1lbs of flaked wheat
Mashed at 149 for 60 minuets
Had a starting gravity of 1.045
Pitched one pack of US-05
Fermented at 66 degrees stepping up one degree a day till reaching 72 degrees
Finished with a gravity of 1.010. I checked the gravity with two different hydrometers the other one read 1.008

Sounds tasty. 1.010 is a nice target.

 

[ESBrewer]

Everything seems to be working now. You can build some complexity on that recipe if you like. You could also calibrate the hydrometers (and thermometers). Check with plain water if they both read 0.000 at calibration temperature and may even draw a calibration curve using some standard sugar solutions. Check that thermometer gives expected results in water stabilized with lots of ice. And in boiling water as well. Just to be sure and to see which hydrometer has an error. And notice that temperature will affect the gravity so it should be measured at the calibration temp of the hydrometer or corrected by some calculations/calculators.

 

[6midgets]

Thanks for the help. This is what I made