So I brewed myself a 5 gallon batch of biermunchers centenial blonde.
It was great and I hit my numbers so I decided to brew a double batch and came in low on the OG even though I just doubled the grain bill.
I used the same mill on the same settings.
I thought it was because i had more than 11 gals. of wort (I had 12).
well, I brewed an 11 gallon batch of oktoberfast today. and came in low again on the OG. my efficiency is going down with larger batches.
I adjust the grain bill to reflect my standard 90% efficiency when doing 5.5 gallon batches then double it but am coming in low.
Should of come in at 1.051 but ended up with 1.045 not too much lower but still with the last 10 5.5 gal batches I hit my OG almost spot on every time.
Could this have anything to do with my 15 gallon kettle basically at the brim with grain in it?
Also, it's harder to squeeze a bag of 20lbs of grain than 10lbs but it shouldn't be that much of a difference.
It was great and I hit my numbers so I decided to brew a double batch and came in low on the OG even though I just doubled the grain bill.
I used the same mill on the same settings.
I thought it was because i had more than 11 gals. of wort (I had 12).
well, I brewed an 11 gallon batch of oktoberfast today. and came in low again on the OG. my efficiency is going down with larger batches.
I adjust the grain bill to reflect my standard 90% efficiency when doing 5.5 gallon batches then double it but am coming in low.
Should of come in at 1.051 but ended up with 1.045 not too much lower but still with the last 10 5.5 gal batches I hit my OG almost spot on every time.
Could this have anything to do with my 15 gallon kettle basically at the brim with grain in it?
Also, it's harder to squeeze a bag of 20lbs of grain than 10lbs but it shouldn't be that much of a difference.