brewhouse efficency check?

[swackattack]

Brewed up a falconers flight IPA today. First ever all grain. Curious as to how I did and how to figure it out on my own too.

12 lbs 2 row pale
1 lb crystal 40
.4 lb dextrine/carapils

infusion mash. Temp was about 153. OG after boil was around 1.061

below is from brewsmith (still figuring this damn thing out)


Falconers Flight IPA
American IPA
Type: All Grain Date: 4/3/2012
Batch Size (fermenter): 5.00 gal Brewer: swack
Boil Size: 7.37 gal Asst Brewer:
Boil Time: 60 min Equipment: Pot and Cooler (10 Gal/37.8 L) - All Grain
End of Boil Volume 6.24 gal Brewhouse Efficiency: 72.00 %
Final Bottling Volume: 4.25 gal Est Mash Efficiency 86.4 %
Fermentation: Ale, Two Stage Taste Rating(out of 50): 30.0
Taste Notes:
Ingredients


Ingredients
Amt Name Type # %/IBU
11 lbs 8.0 oz Pale Malt (2 Row) US (2.0 SRM) Grain 1 88.5 %
1 lbs Cara-Pils/Dextrine (2.0 SRM) Grain 2 7.7 %
8.0 oz Caramel/Crystal Malt - 40L (40.0 SRM) Grain 3 3.8 %
0.75 oz Warrior [13.70 %] - Boil 60.0 min Hop 4 31.0 IBUs
1.00 oz falconersflight [11.70 %] - Boil 15.0 min Hop 5 17.5 IBUs
1.00 oz falconersflight [11.70 %] - Boil 10.0 min Hop 6 12.8 IBUs
1.00 oz falconersflight [11.70 %] - Boil 5.0 min Hop 7 7.0 IBUs
1.0 pkg Safale American (DCL/Fermentis #US-05) [50.28 ml] Yeast 8 -
1.00 oz Falconersflight [11.70 %] - Dry Hop 8.0 Days Hop 9 0.0 IBUs

Beer Profile

Est Original Gravity: 1.067 SG Measured Original Gravity: 1.046 SG
Est Final Gravity: 1.011 SG Measured Final Gravity: 1.010 SG
Estimated Alcohol by Vol: 7.5 % Actual Alcohol by Vol: 4.7 %
Bitterness: 68.4 IBUs Calories: 151.6 kcal/12oz
Est Color: 5.9 SRM
Mash Profile

Mash Name: Single Infusion, Light Body, No Mash Out Total Grain Weight: 13 lbs
Sparge Water: 4.87 gal Grain Temperature: 72.0 F
Sparge Temperature: 168.0 F Tun Temperature: 72.0 F
Adjust Temp for Equipment: TRUE Mash PH: 5.20

 

[Mindhop]

What was your preboil gravity? Need that for efficiency.

 

[Mindhop]

If you hit 10 points below your post boil gravity I have you at 76% efficiency. If so you should be proud.

Cheers!

 

[hnsfeigel]

Looks like BS has it pretty well figured out in the printout if you know which numbers to look at (which I don't.) Like PP said, I'm not sure exactly which numbers you want to use. There are many different points during the brew you can calculate, depending on which one you want. Mash efficiency vs overall efficiency (as compared to expected OG) are 2 different things.

Brewers Friend has one that is pretty easy, just plug your grain and SG in:
http://www.brewersfriend.com/brewhouse-efficiency/

BeerSmith has a nice chart here (http://www.beersmith.com/Grains/Grains/GrainList.htm) . You can use this to figure out the potential of the grain used, then calculate by hand. I'm not smart enough, but here's a thread that pretty much explains the math: https://www.homebrewtalk.com/f36/help-calculating-conversion-159655/