Ey guys I brewed a galaxy SMaSH ale earlier today. I recently purchased the bayou classic SQ14 propane burner and this was my 2nd time using it. The first time I did not use it to its potential and only cut my total brewing time by about 15 minutes compared to using my indoor stove. But today I decided to let the new burner rip.
First off my expected OG according to beer smith with a house efficiency of 72% was 1.056 I used 11lbs of Maris otter. I had a pre boil volume of just over 7 gallons in my 8 gal kettle. I was cruising this time around getting my mash and Sparge waters up to temp very quickly with the burner cranking. I used a 90 minute boil with 7.1 gallons of wort at the start and at the end of my boil into my fermenter I only had a little over 4.5 gallons! including all of my hop break material. I guess what I'm asking is, is a ~40% evaporation loss common with these burners or is this unusual? also my expected OG was 1.056 and ended up at 1.072 I'm not sure if my efficiency was just much better coming in at around 85% or if this has to do with the extreme evap loss.
Any insight would be appreciated. I was shooting for a 5.4 gallons into the fermenter btw. I guess I'll have to be happy with just 4 gallons of hopefully hoppy delicious "supposed to be APA" low IBU high ABV IPA? Don't eevn know how to classify this one
Cheers and Merry Christmas