Originally Posted by lowlife
Normally a larger batch size is less efficient for us homebrewers
My experience is different, but I think it has more to do with how I sparged than anything else.
I normally do 5 gallon batches and use batch sparging. I just dump one big load of water in for the sparge, stir, let rest, and drain to BK.
I did a couple of 10 gallon batches earlier this year and did not have enough room in my 10 gallon MLT to dump all my sparge water in at once, so I split the sparge into two equal volumes and did two sparges.
My efficienty went from my typical 75% up to about 82% on those two 10 gallon batches. I believe it was due to using two sparge additions instead of just one.
I keep meaning to test this by doing a 5 gallon batch with split sparge water, but I always forget and just dump it all in at once.