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Old 02-11-2007, 05:59 PM   #1
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Default Mash steamer #2

Some of you may remember that I built a mash steam generator from a corny keg. I outlined it here. I haven't fired it yet.
http://www.homebrewtalk.com/showthread.php?t=18008

Ummm... it turns out that I already had a 22 Quart steam generator, otherwise known as a pressure cooker, in our house in storage !

You can see pictures of it here.
http://picasaweb.google.com/beermeis...shSteamBoiler2

We bought it about 8 years ago to do some pressure canning. I don't remember where we got it from.

It holds 22 quarts of water. It has 5,10 and 15 PSI pressure settings. It should work excellent. I'll probably incorporate it into my brew stand when I build it.

I'll drill and tap the lid 1/8"NPT or 1/16" NPT and put a valve on it with a line that leads to the mash vessel. I'll heat it with a high powered stove burner, not sure if it will be gas or electric. I'll put a temp sensor on the outside so that my controller can turn the heat on and off as necessary.

I might just put it on the boil pot burner. But the problem with doing that is I can't do two batches at once, one boiling and another mashing. I'm designing my new brewstand for maximum throughput brewing sessions. 6, 12 or 15 gallon batches and doing 2 batches back to back. I guess I need to weigh how important it is to have that capability.

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Old 02-11-2007, 06:14 PM   #2
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What is the volume of steam you will have available?

Will that have enough to supply the needed amount to raise the temps of your grainbed?

I have followed this project with great intrest.

Cheers,

knewshound

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Old 02-11-2007, 07:58 PM   #3
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"What is the volume of steam you will have available?"

The volume of steam doesn't matter. Its the BTUs and the volume of water that matters. The pressure cooker holds 22Qarts, which is 5.5 gallons, which is more than the 19L corny keg. Not only that, but one had to put the corny keg on its side to operate the heating element in the right position and that mean that it could only be filled about 3/4 full to allow some headroom. The pressure cooker has headroom built into the lid.

"Will that have enough to supply the needed amount to raise the temps of your grainbed?"

Yes. Go back and look at the corny calcs. I was going to run the corny at 10 PSI. The pressure cooker is built for 15 PSI. That gives a higher steam temperature.

"I have followed this project with great intrest."

Thanks for telling me that. I never know if people don't say.

Keep your eyes on this forum for a micro steamer setup that I will be testing this week for heating mashes for 3 gallon batches.

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Old 12-29-2007, 04:24 AM   #4
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Any more progress with this evolving project? Did you blow yourself up?

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Old 12-29-2007, 02:11 PM   #5
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I have this page bookmarked Brewman along with FlyGuy's Easy Steam Infusion Mash System
Sounds like this system has huge home brewing potential

Good Stuff
BeerCanuck

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Old 12-31-2007, 07:28 PM   #6
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I too have followed this with great interest for many months. I recently received a 23 qt. pressure cooker and hope to build it into a stand with a portable electric burner (on a GFCI of course)

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Old 12-31-2007, 07:31 PM   #7
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My new pressure canner hasn't shown up yet, holidays, but when it do.......

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Old 12-31-2007, 08:38 PM   #8
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How do the pressure canners/cookers work on high BTU burners? I have 2 small cookers and a large canner, and all 3 state in the instructions not to use them on outdoor cookers/high BTU burners. I am thinking that it says 12,000-15,000 BTUs max. I will try and check tonight if I remember. Does it really effect the cooker/canner, or is it just for liability purposes?

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Old 12-31-2007, 08:44 PM   #9
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nevermind, I misread TWilson's post

cheers

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Old 01-02-2008, 03:07 PM   #10
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My 2 small cookers have a 12,000 BTU max, and my canner has a 15,000 BTU max. I have never used any of them on an outdoor cooker, so I don't know if it would bother them or not. Good luck and keep us posted on your progress.

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