BM efficiency

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BM efficiency

Unread postby spardal » Wed May 18, 2016 11:54 am

Hi all,
I've recently bought a BM 50L and using 11kg grain bill for 55 litres of water, I'm getting a maximum of 1.050 SG. Has anyone getting higher efficiency? If so what are the tips you would share to improve? (Sugar and double mash excluded )
Many thanks


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Re: BM efficiency

Unread postby mashy » Wed May 18, 2016 2:23 pm

So thats about 5% when finished?
Without seeing the full details - method/actual grain bill/final volume etc I would have thought that was about right.
Or have I missed something?
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Re: BM efficiency

Unread postby Dirk » Thu May 19, 2016 7:59 pm

I put in 16,5 kilo max in the bm50. I turn the top plate upside down and fill up the bm till above the wingnut. This way i can brew 70 liter of 1056sg.

I always sparge by the way. When boiling the beer is about 5cm below the top of the bm. High enough sg for me and a big quantity.
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Re: BM efficiency

Unread postby roomfullofmirrors » Sun May 20, 2018 2:05 pm

Dirk wrote:I put in 16,5 kilo max in the bm50. I turn the top plate upside down and fill up the bm till above the wingnut. This way i can brew 70 liter of 1056sg.

I always sparge by the way. When boiling the beer is about 5cm below the top of the bm. High enough sg for me and a big quantity.

I tried this for the first time today. A session APA. 13.5kg of grain for a 1.048 OG, mash in with 67L and sparged with another 17L at mash out. Finished with 72L of 1.048 wort.
Everything went really well except I had a lot of grains and particles escape from my top plate and filter which was upside down. Next time I will pack the plate slightly to ensure grain doesn’t push out at the top of the malt pipe.
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Re: BM efficiency

Unread postby IPA » Mon May 21, 2018 7:11 am

spardal wrote:Hi all,
I've recently bought a BM 50L and using 11kg grain bill for 55 litres of water, I'm getting a maximum of 1.050 SG. Has anyone getting higher efficiency? If so what are the tips you would share to improve? (Sugar and double mash excluded )
Many thanks


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What is the final volume and do you sparge ?
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