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Old 01-05-2010, 01:40 PM   #1
TimWeber
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Default Automated Decoction?

I am in the planing stages of a fully automated brewery. I thought it would be really cool to integrate an automatic decoction mash into this. I thought this might be achieved by pumping part of the mash into the kettle, boiling it, then pumping it back.

Question, can a march pump, pump a thick mash slurry? I am thinking no. Has anyone done this before?

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Old 01-05-2010, 04:17 PM   #2
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Definitely a no.

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Old 01-05-2010, 04:22 PM   #3
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I'd say it depends on which March pump. You need a positive displacement pump to move a slurry.

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Old 01-05-2010, 05:41 PM   #4
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You're also going to need a motorized paddle to stir that decoction constantly... Neat idea, I'd love to see more of this project as it comes together.

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Old 01-05-2010, 06:06 PM   #5
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DUDE, RIGHT ON. I just bought an AC motor and was wondering what to do with it. The thing is a beast. Impulse buy.

I am thinking that this project in not too far fetched if I get the right pump.

At the moment I am gathering supplies to build a getto RIMS, while I plan my frame and gather other components. Nothing really to post about yet. I dropped my first $950 last week and waiting on stuff to come in. I see this as being a multiple year project, with hopes of having at least as much automation as the brewmagic by this time next year.

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Old 01-05-2010, 06:49 PM   #6
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Default Pump decoct

This sounds like a sick idea following this thread!!!

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Old 01-05-2010, 07:01 PM   #7
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If your mash tun has a false bottom (as it probably should) you can pump wort over to the kettle then just take a ladle and move some of the grain over. Just put a bazooka screen or something on the boil kettle so when you pump back to the mash you dont get grain into your pump. Then just scoop the grain back to the MLT. Its not quite uber automation but its a way to do it. You may even be able to rig an ice cream maker to your kettle to automatically stir the decoction

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Old 01-05-2010, 07:51 PM   #8
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Mirillis that'd work, but if you're really going to all the trouble to automate and have a motor to stir a decoction, well...

Personally, I'm thinking this sounds fun and since I just scored 2 kegs for keggles, have a 7.5 gallon aluminum kettla already, and 7.5 gallon keg available as well, I'm thinking, as Tim might be, dedicated decoction vessel. It would mean a 4 vessel system, but that just means more bling!

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Old 01-05-2010, 08:00 PM   #9
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Quote:
Originally Posted by TimWeber View Post
DUDE, RIGHT ON. I just bought an AC motor and was wondering what to do with it. The thing is a beast. Impulse buy.
You should go oldschool and hang some stainless chains from the motor that drag across the bottom of the pot constantly during boiling.
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Old 01-06-2010, 12:28 PM   #10
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I was thinking about this last night, and 4 vessels is what I was thinking. Then you can still do a double brew day. I did a tour of Victory Brewery recently and they have a dedicated Decoction Vessel. I may have drooled a bit in it, watch out for the next batch of Sunrise. :-)

Chains... Excellent idea! I just saw that in a picture of a german brewery.

I've read that bringing a decoction up to boil is not really desired, something 205F is better. You could really automate things here and control that as well.

I am getting too excited here. I just got my RIMS ordered, working on the stand. I won't get to this for a few months, but it's ok to dream.

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