Low abv efficiency

[Mark Weusten]

I have always had very low efficiency on my GF. I calculate it to be 67% on bigger beers. I tend to brew around the 6 % mark. I decided to try a low abv beer in the weekend with 3.6 kg, 1 kg of this being specialty grains. I got 1.038 OG on this (beersmith tells me 1.033), anyone find they get increased efficiency for small batches? It makes sense that it happens but wasn't expecting by so much. Cheers

[Crusader-Rob]

Efficiency drops at a rate of knots, when you gettinginto higher gravities.

I regularly get roughly 73-74% up to 1060, and drops to around 70% by the time you get to 1064 ish.

its the same on all systems normally.

did you usethe small grain bill adapters? If not, you could lose some efficiency, based on a thinner mash consistency, much like BIAB does, (BIAB is normally no sparge) I got 65% max on BIAB no sparge when I was doing that so it stands to reason with your efficiencies, if thats the case.

[Mark Weusten]

No small grain adapter on my kit Rob. Mine finished at 1.003 which is weird as I mashed at 68. Ends up being 4.5 % which was more alcohol and drier than I wanted. Oh well back to the drawing board....