Bigger Batch = Higher Efficiency

Cpt_Kirks · Apr 5, 2010

When I brew a 5 gallon batch, my efficiency is usually around 72%. However, when I brew a 10 gallon batch, the much larger sparge (which is also slower, due to the double thick grain bed) jumps the efficiency up to about 86%.

I guess this is pretty normal, right?

Have to keep that in mind when I brew now.

Brett3rThanU · Apr 5, 2010

I did my first 10 gallon batch last weekend and had the same results as my efficiency jumped from 70% to 80%. I think the extra sparge water and new burner (higher boil off rate) did it for me.

Cpt_Kirks · Apr 5, 2010

My SG was higher than expected going into the keggle. I redid my calculations and added more water to the boil. OG was still high, but not as high as it would have been without the extra water.

Still going to be a strong batch of Hefe.

Oh well, lesson learned.

Saccharomyces · Apr 5, 2010

Exactly my experience. Deeper grainbed and more water results in about 5% higher eff. on my system... I get low 80's with 5 gal batches and upper 80's with 10 gal batches.

jacksonbrown · Apr 5, 2010

Not for me. My 5 gallon batches come in aroun 73%, where as my 10 gal batches give me an effeciency around 65%. Go fig.

whatisitgoodfor · Apr 6, 2010

If you're using the same MLT, you've also got a proportionally smaller dead space, which would increase your efficiency some.

Cpt_Kirks · Apr 6, 2010

You know, I just had a thought:

I moved my braid. It was looped back toward the spigot. I shortened the tube connecting it, and flipped it AWAY from the spigot. That altered the position and size of the dead space, which obviously had an effect.

Bigger Batch = Higher Efficiency

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Bigger Batch = Higher Efficiency

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