20l malt pipe on 50l BM issues

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20l malt pipe on 50l BM issues

Unread postby Talison » Tue Sep 18, 2018 6:33 pm

Hi all,

I've been brewing for +-6months on the BM 50L with some super tasty results. I just purchased a 20L BM malt pipe to try out more adventurous brews.
I tend to start off with highly-rated Beersmith recipes to get the taste of a recipe before mixing them up.
The issues are with the recipes as they all state that I should add 7kgs of malt and 17litres of water, However If I do this.....

1)the contents within the Malt pipe are up to the brim, so much so that I have no hope of giving it a stir.
2)the pre-boil SG always seems to be much lower than the recipes state
3)the efficiency is poor.
4)the amount of sparge water mentioned in the recipes will make the brew tasteless and have a very low ABV

Any help would be greatly appreciated

Cheers :cheers:
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Re: 20l malt pipe on 50l BM issues

Unread postby brewdog » Wed Sep 19, 2018 11:20 am

Are you adjusting the recipe to suit the lower quants.


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Re: 20l malt pipe on 50l BM issues

Unread postby Nashbrew » Wed Sep 19, 2018 11:43 am

7kg of grain sounds a little high for a 20l recipe to me.
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Re: 20l malt pipe on 50l BM issues

Unread postby Talison » Wed Sep 19, 2018 12:02 pm

[quote="brewdog"]Are you adjusting the recipe to suit the lower quants.
Hi BrewDog, thanks for your reply.
Yes, Im using the Beersmith 3 app and have scaled the recipe to 20 litres to suit the current malt pipe.
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Re: 20l malt pipe on 50l BM issues

Unread postby Talison » Wed Sep 19, 2018 12:06 pm

Hi NashBrew, thanks for getting back.
7kgs does seem a bit high but the recipe Im working off has turned out spot on with the 50l Malt pipe.
The actual recipe is " Bells two hearted IPA " by JJJ and is highly rated on Beersmith.

Tom

Nashbrew wrote:7kg of grain sounds a little high for a 20l recipe to me.
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Re: 20l malt pipe on 50l BM issues

Unread postby Talison » Wed Sep 19, 2018 12:10 pm

Here is a screenshot of the recipe :
Attachments
Screen Shot 2018-09-19 at 14.03.23.png
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Re: 20l malt pipe on 50l BM issues

Unread postby f00b4r » Wed Sep 19, 2018 3:24 pm

The short malt pipe for the 50L BM is actually 25L, did you buy the standard 20L BM malt pipe by accident?
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Re: 20l malt pipe on 50l BM issues

Unread postby mashy » Wed Sep 19, 2018 4:10 pm

Nashbrew wrote:7kg of grain sounds a little high for a 20l recipe to me.


It is!

@f00b4r ... that is a very very good point.
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Re: 20l malt pipe on 50l BM issues

Unread postby Talison » Wed Sep 19, 2018 5:17 pm

Hey Guy's
Thanks for all you replies.
The malt pipe goes to the 30l mark so unfortunately that isn't the issue.

The recipe states that I need 6.7kgs of grain and 17.5 litres of water for the initial mash...
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Re: 20l malt pipe on 50l BM issues

Unread postby mashy » Wed Sep 19, 2018 7:28 pm

Can you work out the brew manually, using the calcs on brewersfriend to see where the error is?
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Re: 20l malt pipe on 50l BM issues

Unread postby Fritzkellerbrau » Thu Sep 20, 2018 4:16 pm

Does not sound right. Typical grain is between 5kg to 6 kg with water at 41l (grain absorption just under 1l per pg, 1.5l trub, 90 min boil - 7.5l boil off and 4% shrinkage) to get about 26l into the fermenter at 1.05. More than 6kg pushes the capacity unless you use other options to increase grain capacity (see other threads on site).

Your reference to initial mash sounds like you have in the mash steps in Beersmith a mash step where you need to add quite a bit of water. Check the details on the mash steps.
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Re: 20l malt pipe on 50l BM issues

Unread postby IPA » Fri Sep 21, 2018 7:52 am

Talison wrote: The recipe states that I need 6.7kgs of grain and 17.5 litres of water for the initial mash...


Sounds like you are using a recipe designed for a normal mash tun not a BM. 2.5 litres per kilo of grist.
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Re: 20l malt pipe on 50l BM issues

Unread postby Talison » Sun Sep 23, 2018 11:35 am

Fritzkellerbrau wrote:Does not sound right. Typical grain is between 5kg to 6 kg with water at 41l (grain absorption just under 1l per pg, 1.5l trub, 90 min boil - 7.5l boil off and 4% shrinkage) to get about 26l into the fermenter at 1.05. More than 6kg pushes the capacity unless you use other options to increase grain capacity (see other threads on site).

Your reference to initial mash sounds like you have in the mash steps in Beersmith a mash step where you need to add quite a bit of water. Check the details on the mash steps.


Cheers Fritz... never heard of these quantities vs volume of water before, nor have I seen any recipe sites that use similar amounts of water.
What kind of Beer are you making?

Tom
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Re: 20l malt pipe on 50l BM issues

Unread postby Talison » Sun Sep 23, 2018 11:42 am

IPA wrote:
Talison wrote: The recipe states that I need 6.7kgs of grain and 17.5 litres of water for the initial mash...


Sounds like you are using a recipe designed for a normal mash tun not a BM. 2.5 litres per kilo of grist.



Yeah that could be possible.
We have calculated the recipe manually and our results are not the same as what Brewsmith's scaling function outputs. We're beginning to think either that function is crap, or we made a mistake by setting our new equipment/ malt pipe as a BM 20L. Could that have an impact vs. choosing a BM 50L then scaling down to 20L (in terms of mismatched efficiencies and size)? Thanks in advance,

Tom
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Re: 20l malt pipe on 50l BM issues

Unread postby Talison » Sun Sep 23, 2018 11:44 am

mashy wrote:Can you work out the brew manually, using the calcs on brewersfriend to see where the error is?




Yeah that could be possible.
We have calculated the recipe manually and our results are not the same as what Brewsmith's scaling function outputs. We're beginning to think either that function is crap, or we made a mistake by setting our new equipment/ malt pipe as a BM 20L. Could that have an impact vs. choosing a BM 50L then scaling down to 20L (in terms of mismatched efficiencies and size)? Thanks in advance,

Tom
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