Water
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Grain absorption 1/2 qt per lb -> 4 qt=1 gallon absorption.
False bottom ~ 1/2 gallon.
Total strike water for 1.5 qt per lb = 1.5*8.15+4+2 ~ 18 qt = 4.5 gallon.
-> volume of mash tun too low for this amount. ~3.5 gallons added.
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Temperature
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Target 165 F strike water temp. Thermometer has a +4 degree bias, so 169 F reading necessary.
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Mash notes
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1 gallon boiling water added to mash tun to warm it up.
Dumped this water, added ~3.5 gallons strike water then slowly stirred in grain.
Boiling water added to adjust temperature to 156 F.
60 minute mash starting at 156 F.
After 30 minutes, temperature 153.5 F, likely due to tun continuing to warm up.
~1 gallon boiling water added at mash out, hold temperature at 161 F for 10 minutes.
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Sparge notes
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Stuck sparge. Flow at a dribble. Need to use rice hulls.
Collected ~2 gallons of first runnings and put to boil during vorlauf. This heated first runnings added incrementally back to the mash.
Sparge taking ages.
(feeling like Ori writing the last book chronicling the dwarves of Balin's kingdom in Moria right now) the wort cannot get out.
Ended up batch sparging to 6.5 gallons.
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Boil notes
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This went surprisingly well, albeit a bit slow as the boil was done on the stove top (coil burners).
Hops added at 60 minutes.
After boil the kettle was chilled in the bathtub.
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Fermenter
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11.2 brix = 1.045 OG (82% brewhouse efficiency? Seems super high).
Siphoned to fermenter and run through fine sieve to aerate.
One packet US-05 added directly to fermenter.
The seal on the fermenter lid is not great so it was sealed with copious duct tape.
Finished 5.6 brix = 1.022 SG