Mash Efficiency

[amrmedic]

Ok, maybe someone here can help me this. I never have determined my brewhouse efficiency. Today, the SG of the wort after sparging but before boiling was 1.047 (my program said 1.044 for 65% efficiency). After boiling I got 1.052 and my target was 1.058. I have used different calculators and they all give me different answers. I used 5 pounds Maris Otter, 3 pounds smoked malt, 2 pounds Carared, 2 pounds Munich malt and 3 ounces of roasted Barley.

Can someone help me?

Thanks

 

[bob1852]

What was your pre and post boil volumes?

 

[amrmedic]

pre boil was 6.75 and after boil was 5

 

[bob1852]

By my calculations, based on the numbers you gave me, I put you at 60% brewhouse....

based on your grains you had about ~433 gravity points available (I guessed on the PPG for carared and smoked).

So you divide that by your post-boil volume and your potential was 1.087. At 1.052, you're at 60% (=52/87)

 

[amrmedic]

Thanks