Gravities all have 0.003 subtracted from my actual readings. I have tested with two hydrometers and both read my tap water at 1.002 to 1.004 consistently.
Preboil SG: 1.036
Original gravity: 1.055
Volume in Fermenter: 2.7 Gallons
Preboil gravity is after temperature correction for 158F on a hydrometer calibrated at 60F up to 1.039 and then subtract the .003 extra. Actual hydrometer reading was 1.018.
Added grains at 157F. Stirred initially and again after about 15 minutes. Added heat for 30 secs or less just to heat a bit then stirred - just enough to get the stove burner warm-ish.
Every 15-20 minutes I stirred and checked the temperature in several spots. Added heat one last time for just 30 secs to 1 minute when there was about 10 minutes left on 70 minute mash and temps reading about 144F. End temp was about 148F-150F. May have hit as high as 158 in hot spots after adding heat second time, but overall I think this was good since I stirred and checked several places. Overall mash temp was probably mostly 147-152 range. That's a bit lower than I was going for, but with consistently not hitting my final gravity in the past, hopefully this takes care of the problem. Overall, I messed with the mash temperature less than I frequently do in trying to correct for my poor insulation + weird readings on a full volume BIAB mash, instead trusting the calculators and those with more experience than me. Hopefully this turns out good.
I ended with a bit more wort than expected and at a barely higher gravity. I can probably adjust for better efficiency on the grain amounts if I can keep this consistent. I suspect the extra volume was just due to less evaporation because it's summer and very humid.
|1.044 - 1.056||1.010 - 1.014||10 - 18||
14 - 23 srm
|Brewed On||Packaged On||On Tap Date||Original Gravity||Final Gravity||Color|
|Aug. 16, 2020||Aug. 29, 2020||Aug. 30, 2020||1.055||1.013||