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Old 08-03-2010, 05:55 PM   #1
Bwoe
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Default Mash tun as brew pot?

Simple question,
I recently purchased an 8 gallon brew kettle w/false bottom and ball valve to begin experimenting in all grain. I'm curious if it's feasible to use this kettle for both the mash and the boil. My only concern is the tubing between the false bottom and valve, and if it's able to tolerate the heat of the boil. It's food grade tubing bought from the local brew shop.

Any thoughts?
P.S. I realize this is my first post, but I did search for this and didn't find what I was looking for.

Thanks for your time,
_Bwoe_

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Old 08-03-2010, 07:03 PM   #2
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plastic tubing is only rated "food grade" within a certain temperature range. You may wanna check that. there is tubing available that will take the boil heat just fine.

As far as using the vessel for boiling, it could be as simple as: A) Mash B) Lauter and sparge into a bucket, etc. C) Empty vessel and remove false bottom D) Pour wort back in and begin boil.

Obviously you're better off with dedicated vessels, but you could probably make it work if you need to.

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Old 08-03-2010, 10:30 PM   #3
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I'm pretty sure that most brew shops will have some high temp (e.g silicone) tubing. If not you can get it online. Of course then you will have to go changing tubes.

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Old 08-04-2010, 01:38 AM   #4
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I would only use silicone if you need to use tubing in the boil. Even so a better choice is to change it to a hard line with a removable fitting if you can.

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Old 08-04-2010, 03:11 PM   #5
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Quote:
Originally Posted by BargainFittings View Post
I would only use silicone if you need to use tubing in the boil. Even so a better choice is to change it to a hard line with a removable fitting if you can.
I believe we were discussing using the mash tun with some kind of mysterious "food grade" tubing during the boil. I was suggesting that silicone was a better choice of material than what is most likely vinyl tubing and it would almost certainly be easier to switch to silicone than putting in copper or SS to the false bottom.
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Old 08-04-2010, 03:22 PM   #6
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I believe that we agree then

I did read his statement. Silicone is ok in the boil. Personally I would not use any plastic in the boil if I can avoid it but that is a personal preference.

I would not use any kind of clear vinyl tubing in the boil.


Last edited by BargainFittings; 08-04-2010 at 03:27 PM. Reason: Clarity
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Old 08-04-2010, 03:33 PM   #7
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Quote:
Originally Posted by BargainFittings View Post
I believe that we agree then

I did read his statement. Silicone is ok in the boil. Personally I would not use any plastic in the boil if I can avoid it but that is a personal preference.

I would not use any kind of clear vinyl tubing in the boil.
Cheers to you then.
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Old 08-04-2010, 03:36 PM   #8
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With the brew pot kettle whatever you want to call it.

Put a few gallons of water in it and boil. If it withstands the water boil it should boil wort.

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Old 08-04-2010, 05:57 PM   #9
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Originally Posted by dogtailale View Post
With the brew pot kettle whatever you want to call it.

Put a few gallons of water in it and boil. If it withstands the water boil it should boil wort.
I can't think of any tubing material that wouldn't stand up under the heat, it's more a matter of plasticizers, etc. leaching out of the plastic at high temperatures.
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Old 08-04-2010, 10:21 PM   #10
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This was found in information from a tubing distributor:

Quote:
Vinyl tubing cannot be autoclaved and should not be exposed to temperatures above 80°C.
Clear vinyl tubing should not be subject to boiling (or close to boiling temperatures). Hard plumb it as suggested by BargainFittings or swap out to silicone as Pivovar recommended.

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