Your hand calculation does not do this, and if you have an significant losses going to the fermenter, it would not be surprising to see a 10% loss in efficiency. If he did this, then this calculation takes kettle losses into consideration as well (e.g., losses of wort in the kettle, in the chiller, or to hop absorption). That is easy to confuse - in fact I think even Kaiser did that above (your batch size to be entered into Beersmith was probably something like 5.5 gals, NOT 6.5 gals which is the pre-boil volume).Īlso note that he may have calcluated Brewhouse efficiency based on volume and gravity into the fermenter. I suspect your buddy may have confused something here (e.g., used your post-boil volume but entered the pre-boil gravity).

Which one did you use? Most people use the calculation based on Beersmith's predicted target volume (this is the volume of wort AFTER boiling and cooling - i.e. I think your problem is how you are using/interpretting Beersmith.īeersmith calculates efficiency a few different ways. Does anyone else calculate their points per gallon? Have I calculated this wrong too? I calculated that with 12.5 lbs, collecting 6.5 gallons into my kettle and a OG of 1060 I got 31 points per gallon from my mash. Palmer also indicates that you can calculate your efficiency by points per gallon. The beersmith calculation my brewing buddy did said I got 73% efficiency. Palmer says to divide 60/71 and you get your efficiency for this brew day I calculated 84.5% efficiency. The 6.5 gallons of wort that I collected in my kettle had a BG of 1.060. Palmer says this is the max extraction efficiency from these grains 1.071. Palmer says to multiply the points per pound then divide by the amount of wort collected into the kettle (38 x 3.5, 37 x 9 = 466 then divide by 6.5 = 71.6). For max efficiency, he gives 38 points for two-row, 37 points for wheat and he does not assign a value for Maris Otter so I guessed 37 for Maris. In one of the chapters in Palmers book, What to expect when youre extracting, he assigns points to various grains. This is the recipe: 7.5 lbs maris otter, 3.5 lbs two-row and 1.5 lb wheat collected 6.5 gallons of wort and had a 1.060 BG gravity. I was hoping another brewer could help me out. Im sure I am doing something wrong and I would like to figure out what it could be. Recently, when I asked a brewing buddy to put a recipe into beersmith I discovered that my hand calculations dont match beersmiths numbers. I dont have beersmith so I have been doing my efficiency calculations by hand using Palmers book How to Brew as a guide.

Brewhouse efficiency beersmith