Recirculation

Wort making

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Big Monk
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Recirculation

Postby Big Monk » Wed Jun 29, 2016 12:01 pm

What is the consensus on mash recirculation? Are you only recirculating when adding heat or doing it throughout the entire mash?

I'm just trying to brainstorm on the electrical diagram for my new system. If recirculation lasts the duration of the mash I can just wire the pump to an on/off switch and leave it running. If only using it during periods when heat is being added, I can wire it to an auto/manual switch so it can kick on in conjunction with my heat source or be manually operated.
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Brandon
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Re: Recirculation

Postby Brandon » Wed Jun 29, 2016 12:17 pm

Big Monk wrote:What is the consensus on mash recirculation? Are you only recirculating when adding heat or doing it throughout the entire mash?

I'm just trying to brainstorm on the electrical diagram for my new system. If recirculation lasts the duration of the mash I can just wire the pump to an on/off switch and leave it running. If only using it during periods when heat is being added, I can wire it to an auto/manual switch so it can kick on in conjunction with my heat source or be manually operated.


I used to recirculate during the entire mash. I've been experimenting with shutting the pump off during rests though. No conclusive info yet on the impact.
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Ancient Abbey
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Recirculation

Postby Ancient Abbey » Wed Jun 29, 2016 1:01 pm

I only pump when adding heat and during mash out. On my next system, I plan to have my pump set to kick on and off based on temperature.
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Big Monk
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Re: Recirculation

Postby Big Monk » Wed Jun 29, 2016 1:37 pm

Ancient Abbey wrote:I only pump when adding heat and during mash out. On my next system, I plan to have my pump set to kick on and off based on temperature.


Ok. This is what I was driving at.

I want to wire the pump to a manual/auto switch so that in manual I have control of the pump on demand and in auto it is wired in parallel with the heat source. This way the pump turns on when the controller turns on the heat source.
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Bilsch
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Re: Recirculation

Postby Bilsch » Wed Jun 29, 2016 2:58 pm

Maybe an delay off type solenoid switch might be a good idea to turn the pump off a few minutes after the heat source to protect from hot spots.
I also get better performance and longer times between pump runs by insulating the kettle. I use 2" wide roll ceramic pipe insulation which works great. Just wrap it around a few times secure with a paper clip. Then remove after the mash before cleaning to keep it clean. Store rolled up in a bag.
Last edited by Bilsch on Wed Jun 29, 2016 3:13 pm, edited 1 time in total.
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Brandon
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Re: Recirculation

Postby Brandon » Wed Jun 29, 2016 3:12 pm

Bilsch wrote:I think a delay off type solenoid switch might be a good idea to turn the pump off a few minutes after the heat source to protect from hot spots.


That's basically what I've been doing...but manually. I believe Bryan has a dual-loop recirculation that runs constantly and is either heating or holding steady (or even cooling?) The valve switches flow between the two loops based on temp needs. This is probably the best solution as long as the constant circulation isn't causing stress on the wort.
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Re: Recirculation

Postby Bryan R » Wed Jun 29, 2016 3:16 pm

Pump the entire time.

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