Help calc my efficiencies

[JayB68]

I've done a number of all grain batches but never looked at any values other than post boil and final gravity. I just bought my first mill and want to know how I did on efficiency.

Here's the grain bill:

6.5 lb Marris otter
1lb toasted malt
1lb victory malt
1lb melenoiden
1lb crystal 80

My process:

1. Mashed in with 3.5 gal at 154 for 60 min.
2. Added 1.5 gal 180 deg water, stirred and drained first runnings. Collected 3.5 gal at 1.070
3. Added rest of the sparge water, stirred and drained 3.5 gal at 1.025
4. Boiled for 1 hour, collected 5.5 gal into the fermentor at 1.050

How do I calc my mash/conversion efficiency and total efficiency?

Thanks.

 

[RedmondUK]

Try this brewhouse efficiency calculator http://www.brewersfriend.com/brewhouse-efficiency/

 

[RedmondUK]

What do you mean by total efficiency? Your mash efficiency is the percentage of potential sugars extracted from grain during conversion and your final gravity reading will be determined by how evaporation during boil.

 

[JayB68]

By total I meant brew house efficiency. Using the linked calculator, my conversion efficiency was a crappy 44% but my brewhouse efficiency was 71% seems kind of odd.

 

[Dmanshane]

Buy beer smith and never look back

 

[acidrain]

By total I meant brew house efficiency. Using the linked calculator, my conversion efficiency was a crappy 44% but my brewhouse efficiency was 71% seems kind of odd.

Can't happen... your brewhouse efficiency is always going to be less that your mash efficiency.

Keep in mind that when figuring your efficiencies, you need very accurate volume and gravity readings. Forget about sparges and adding/subtracting volumes. MEASURE the total pre-boil volume. When taking a gravity reading, make sure your refractometer is calibrated, and if using a hydrometer, make sure the sample is at the correct temperature.

 

[JayB68]

Can't happen... your brewhouse efficiency is always going to be less that your mash efficiency.

Keep in mind that when figuring your efficiencies, you need very accurate volume and gravity readings. Forget about sparges and adding/subtracting volumes. MEASURE the total pre-boil volume. When taking a gravity reading, make sure your refractometer is calibrated, and if using a hydrometer, make sure the sample is at the correct temperature.

Ok, that makes more sense. I collected 7 gal pre-boil volume at 1.047. Putting those numbers in I get 85% pre-boil efficiency.

I used a hydrometer and put all my samples in the fridge until they were at 65.