For the third brew in a row I have overshot my expected O.G. Is this normal with the grainfather. Their recipe builder tool has a default of 75% efficiency. I seem to be hitting 83% to there about. Do other users find this to be the case?
With my last brew I diluted it a bit when bottling, added more water to the priming sugar while batch priming and that worked out fine. Todays brew was a winter weiss so the expected 6% instead of 5.4% doesn't bother me as it's not the sort of beer I'd be having lots of at one sitting. Putting it away for cold winter nights.You can always liquor back after the boil. It's a bit like free beer...
Doesn’t really matter either if it’s a bit under hopped.With my last brew I diluted it a bit when bottling, added more water to the priming sugar while batch priming and that worked out fine. Todays brew was a winter weiss so the expected 6% instead of 5.4% doesn't bother me as it's not the sort of beer I'd be having lots of at one sitting. Putting it away for cold winter nights.
I've regularly been getting efficiencies in the high 80's % in mine. But I also seem to struggle to get the FG down much below 1.020. I have come to the assumption that some of that extra gravity comes from unfermentables. So I was thinking of testing this assumption by mashing a few degrees cooler (62 or 63°C) in my next brew to see how that works.
83% is not that unusual, but you do have to dough in well and it foes help if you keep the total grain bill around the "sweet spot" of 4.5kg for the standard pipework . Efficiency seems to drop off a bit by 5kg and a bit more by 6kg. (I've never done a small grain bill in the GF).
This brew was 3.7kg with an extra 100g of rice hulls using the micro pipe work for a 15L brew. I got over 80% with 5.3kg on my last brew with ordinary pipe work.
Dont complain, higher OG means Higher ABV. Winner : )
I'm trying a huge grandfather brew next week, taking it to its limits with 9KG of Malt and hoping to hit 12%
Going for a Maple, Vanilla, Cacao Imperial Stout
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