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Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Vinyl tubing and high temps question
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Old 01-13-2013, 06:38 PM   #11
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If you want the cadillac of flixible tubing get some Norprene. It's specifically designed for hot food and beverage applitcations. I've had great luck with it and it will outlast silicone tubing making it worth the extra $ IMO.

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Old 01-13-2013, 06:51 PM   #12
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Quote:
Originally Posted by acidrain View Post
Don't use Vinyl tubing.
Why? I understand for boiling wort, but why not to gravity transfer 170F wort?
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Old 01-13-2013, 11:55 PM   #13
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Quote:
Originally Posted by seabass07 View Post
Why? I understand for boiling wort, but why not to gravity transfer 170F wort?
Heat a cup of water to 170F, drop a piece of vinyl in, let steep for 15 minutes and then taste. You be the judge.

Besides, why not just let it drain directly into the BK?
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Old 01-14-2013, 12:12 AM   #14
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Quote:
Originally Posted by acidrain

Heat a cup of water to 170F, drop a piece of vinyl in, let steep for 15 minutes and then taste. You be the judge.

Besides, why not just let it drain directly into the BK?
To avoid hot side aeration. Some say it matters, some say it doesn't matter. I'm new the this debate, and not sure which side of the fence to believe!

Btw, while it is boiling away and bubbling, isn't this exposing it to oxygen?
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Old 01-14-2013, 01:52 AM   #15
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The boil drives off o2.

I havent noticed any off flavors from vinyl. Ill give it a try with just water and see if i notice anything. I dont like it splashing all over the place. It is just more brewing ocd on my part.

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Old 01-14-2013, 05:02 AM   #16
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I was looking to upgrade the hoses on my wort chiller to silicone because my ****ty little vinyl or PVC hoses that I have start to bend and pinch as soon as I throw my chiller in my boiling wort

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Old 01-14-2013, 05:42 AM   #17
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I use the tubing as a system requirement. My mashtun is a keggle and I have the standard ball valve weldless setup with diptube and false bottom. The hose is needed to provide suction so it empties the mashtun.
Dont use vinyl or PVC due to the high temps.
Use silicone tubing and CPVC (the same kind that you will find on your water heater).

I should mention that I only use CPVC for my sparge arm.

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Old 01-14-2013, 12:46 PM   #18
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If boiling drives off oxygen, then won't any oxygen introduced during mashing be driven off during the boil?

Ill check the local hw stores to see if they have silicon tubing, if not I'm thinking of just letting it fall from mash tun into brew kettle, or maybe try to tilt the bk like its a huge beer glass and let it slide in...

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Old 01-14-2013, 02:49 PM   #19
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Well damnit, my tubing is vinyl that I just used for my first AG brew. My wort tasted delicious, and I didn't taste any plasticy notes. Does it leach bad chemicals to where I should be worried and pitching my batch? I don't want to get poisoned lol

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Old 01-14-2013, 04:28 PM   #20
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Vinyl is not temperature rated for anything about 70F or so. So with the 170F wort you are siphoning from your Mash Tun to your Kettle, you are going to seep some nasty chemicals.

I just used some vinyl tubing and was pretty creeped out with how soft and spaghetti like it turned when siphoning to my kettle. After that batch I ordered silicone tubing to use from now on. I don't want to worry about drinking plastic chemicals.

+1 to silicone tubing!

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