BM 50lt boil off per hour

How to get most out of brewing with your Braumeister? Help others and share your tips/best practices.

BM 50lt boil off per hour

Unread postby Crusty » Fri Oct 17, 2014 9:00 am

Just curious to know what you guys are boiling off per hour.
I'm using the thermo jacket on my BM which helps a bit with the boil.
Going back to Beer Tools Pro from BeerSmith 2 & trying to enter some constants. I'm finding way to many discrepancies with BeerSmith.
Cheers.
Crusty
 
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Re: BM 50lt boil off per hour

Unread postby paulg » Fri Oct 17, 2014 12:39 pm

I have mine set to 5 litres/hour in beersmith,not sure how accurate that is but it is close
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Re: BM 50lt boil off per hour

Unread postby flemming » Fri Oct 17, 2014 1:16 pm

Things like ambient temperature and humidity will impact evaporation rate. According to my logs I've had as little as 4.13 l/hr and as much as 6 l/hr. It seems that 5 l/hr is what a lot of people use and the average across ~20 brews for me is 4.98 l/hr, so I'd call that about right.

Robert
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Re: BM 50lt boil off per hour

Unread postby Crusty » Fri Oct 17, 2014 9:44 pm

Thanks for the advice guys.
5lt/hr seems low & I assumed that a 10% boil off rate would be more like it.
For 40lt into the fermenter, I generally strike in with 55lt of water & sparge with 10lt so maybe I need to adjust these amounts.
Last brew I ended up with an extra 6lt of wort @ required gravity so somethings off somewhere.
I might go fill the machine up & boil it for an hour & see what I get.
Cheers guys.
Crusty
 
Posts: 51
Joined: Wed Jan 22, 2014 4:00 am
Location: Yamba. NSW.
Model: 50 litres

Re: BM 50lt boil off per hour

Unread postby Crusty » Sat Oct 18, 2014 2:15 am

I just boiled the BM for an hour & according to my dowel measuring stick, I lost 6lt/hr.
I normally strike in with 55lt of water & sparge with 10lt. I might look at cutting my strike water volume back to 53lt & see if that gets me closer.
What volume are you guys striking in with?
I'm looking to end up with 40lt into the fermenter.
Crusty
 
Posts: 51
Joined: Wed Jan 22, 2014 4:00 am
Location: Yamba. NSW.
Model: 50 litres

Re: BM 50lt boil off per hour

Unread postby paulg » Sat Oct 18, 2014 8:27 am

if I am aiming for 45 litres in the fermenters (2 x sstech brewbuckets) I fill with 53 litres and sparge with 10
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Re: BM 50lt boil off per hour

Unread postby Crusty » Sat Oct 18, 2014 8:42 am

paulg wrote:if I am aiming for 45 litres in the fermenters (2 x sstech brewbuckets) I fill with 53 litres and sparge with 10


Cheers paulg.
I will try 53lt mash in with 8lts sparge. That should get me close to 40lt into the fermenter.
Crusty
 
Posts: 51
Joined: Wed Jan 22, 2014 4:00 am
Location: Yamba. NSW.
Model: 50 litres


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