Braumeister calculations and efficiency

[Pagibson]

Hi,

Does anyone have a calculation for accurately hitting the same ABV while brewing on a BM 50L. I have perfected a couple of recipes on the BM 50L however struggle to get a consistant ABV when I repeat them.

Any feedback would be welcome

Cheers

P

[BrewerBen]

I use the 50L Bm but so far have only used the 25L malt pipe. Unfortunately i don't really have a answer for you question but below is a summary of the brews i have done so far. I'm my own worse enemy when it comes to consistent brews as i change too much from one to another.

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Mash  Sparge  Grain  Eff  Fermenter Vol	Notes	
30l   4L      4820g  72%  23l			 
30l   12L     4208g  77%  30l
27.5l 10L     5000g  71%  25l		 wheat
30l   8L      5000g  78%  24L		 wheat
30L   10L     6230g  69%  26L		 overloaded malt pipe
30L   10.5L   5000g  71%  27.5L
30L   10.5    5480g  75%  27L
30L   8L      5500g  70%  25L		 wheat
30L   8L      5318g  79%  24L
30L   8L      5410g  82%  27.5L
30L   10L     4573g  81%  30L
30L   7.5L    5000g  87%  27L
30L   7.5L    5000g  78%  26L
30L   8L      5500g  79%  27L		 wheat

[Matt12398]

I'm getting about 72% efficiency with no sparge. I think I've gotten my boil off set up properly now in Beersmith so the figures are getting more accurate.

It will depend on the malt, your water and a host of other things though.

[IPA]

Hi,

Does anyone have a calculation for accurately hitting the same ABV while brewing on a BM 50L. I have perfected a couple of recipes on the BM 50L however struggle to get a consistant ABV when I repeat them.

Any feedback would be welcome

Cheers

P

If you are talking about OG, abv depends a a lot on what yeast you are using, with 20 BM fill with 25 litres of water and sparge with 6 litres. With the 50 fill with 55 litres and sparge with 12 litres. To sparge lift the tube onto the stirrup,leave the top filters in place and very slowly pour your Sparge water at 78 degrees over the filter. This way using an all grain mash you will achieve 80-85 percent efficiency. With mashes containing flakes and other non malted cereals it will be lower. Top up to desired volume after the boil.