Another Sunday well spent out with the brew kettle, however my efficiency seems quite off for the recipe:
Amarillo Pale Ale
2.5 Gallon Batch
Grain Bill:
4.5 lb - 2 Row Malt
0.5 lb - Caramunich II Malt
Hops:
7 g Perle(60)
14 g Amarillo(10)
Yeast:
BRY-97 American West Coast Ale
I was expecting the OG to be around 1.054 SG, however it turned out to be only 1.040 which seems quite low, I rarely have efficiency issues. The only real change here to my style is that it was a 2.5 gallon batch versus 5 gallons usually. One thing that jumps out is that my kettle has about a gallon below the valve line and if that is added in it would be 3.5 gallons and 1.040 SG would have been 87% efficiency.
Needing to account for the trub/leftovers in the kettle would make sense as I thought I usually got about 75% efficiency at 5 gallons but if I adjust up to 6 gallons would have me at 85-90% efficiency on recent batches which would match the efficiency of the 2.5 gallon batch.
Would you guys use the final volume as what goes to the fermentor, or what is left in the kettle?
Either way the beer looks and smells great, I've just got more of a session beer than an American Pale Ale.
Cheers!