#### Upstate12866

##### Member

- Joined
- Jun 26, 2018

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I have brewed BIAB 4 times now, but I get really bad efficiency each time. What am I doing wrong?

1. I use 1.25-1.5 qt water per pound of basic American pale malt. Today, I did 1 gallon for 2.75 lb of malt. I want to make 2 gallons of light pale ale, maybe 1.038 is my target. By my calculations, that should be about 70-75% efficiency, which I understand is reasonable for biab.

2. Temp after dropping in grains was about 152. Cut the heat and left for 30 min, at which time it dropped to 145. I heated to 158 and cut heat for 30 min. Then mashout by heating to 170. A total of 90 minutes for all this.

3. I squeezed the bag like hell, then ran the other gallon of my warm water through and squeezed again.

4. I ended up with og in the mid 20's, after stirring well and adjusting for temperature (85 degrees). I added .75 lb of DME to get to maybe 1.036.

I think my efficiency is too low or my calculations are screwy. An online calculator put my efficiency under 50%.

What am I doing wrong? Any help would be awesome. Every time I brew there is some inexplicable curveball that is throwing me for a loop. Thank you!

1. I use 1.25-1.5 qt water per pound of basic American pale malt. Today, I did 1 gallon for 2.75 lb of malt. I want to make 2 gallons of light pale ale, maybe 1.038 is my target. By my calculations, that should be about 70-75% efficiency, which I understand is reasonable for biab.

2. Temp after dropping in grains was about 152. Cut the heat and left for 30 min, at which time it dropped to 145. I heated to 158 and cut heat for 30 min. Then mashout by heating to 170. A total of 90 minutes for all this.

3. I squeezed the bag like hell, then ran the other gallon of my warm water through and squeezed again.

4. I ended up with og in the mid 20's, after stirring well and adjusting for temperature (85 degrees). I added .75 lb of DME to get to maybe 1.036.

I think my efficiency is too low or my calculations are screwy. An online calculator put my efficiency under 50%.

What am I doing wrong? Any help would be awesome. Every time I brew there is some inexplicable curveball that is throwing me for a loop. Thank you!

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