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Old 05-04-2012, 03:33 AM   #1
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Default Boiled my racking tube. No longer clear.

Well, tonight I finally did my first 5gal batch using equipment I bought 2nd hand. I noticed the racking tubing had a couple spots of dried beer in it, so I stuck it in a pot to boil for about 20 min to loosen everything up in order to rinse it clean. Well, 20 min later, it went from transparent to opaque...Oh well...

Just a heads-up for anyone who was going to do this.

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Old 05-04-2012, 03:40 AM   #2
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It's plastic! Boiling it would never occur to me. But thanks for the heads up.

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Old 05-04-2012, 04:56 AM   #3
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Unless it's made of polycarbonate - which it probably isn't, more likely is acrylic - it's definitely not good past 200 degrees Fahrenheit (and that's a serious stretch). You need to use chemical sanitizers like StarSan to sanitize these rather than boiling them.

Sharp temerature changes to plastics like these will lead to cracks (or microcracks which you may not see) which will harbor bacteria that is not curable by surface disinfectants like StarSan, Iodophor, bleach, etc.

Summary: high temps bad, temperature swings bad, cracks bad, microcracks bad, chemical surface disinfectants good if there are no cracks.

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Old 05-04-2012, 05:26 AM   #4
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The starsan was not getting the dried beer out, so hopefully the tubing is OK. I'll need it again in a couple weeks.

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Queue: King Tut ale, BIG barleywine, Desire mead, .
Fermenting:Denny Conn's vanilla porter
Secondary:
Bottled: <1.060: AHS Aniv Wit, lemon wheat, Blonde rye.
<1.090: How Rye I Am, Rye wheat ale, spiced tripel, tripel w/orange, baltic porter, skeeter pee lime and lemon w/cranberry, Milk stout.
<1.110: Reverend clone, IIPA. Chocolate RIS, Bourbon Barrel Quad, chocolate RIS w/oak & whiskey
>1.110 OG: Double W (inspired) stout, Choco milk Czar, Mephistopheles (inspired) stout..
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Old 05-04-2012, 07:12 AM   #5
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The cane should be clear so you can see if it's clean or not. Those things are dirt cheap- toss it and get another!

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Old 05-04-2012, 07:32 AM   #6
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Yup, the heat causes conformation changes in the molecular structure of the plastic so instead of an ordered macro structure that would let light through, the molecules are all twisted and jumbled now making it opaque.

Just in case anyone was wondering about the chemistry of it :3

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Old 05-04-2012, 11:33 AM   #7
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Quote:
Originally Posted by looneybomber
The starsan was not getting the dried beer out, so hopefully the tubing is OK. I'll need it again in a couple weeks.
Tubing is cheap! Retire the boiled piece and swing by your LHBS and grab some more. I usually try to keep some extra around, just in case.
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Old 05-04-2012, 12:43 PM   #8
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To clean up the died on bits, soak in Oxyclean for a little while. It just dissolves those bits and then a good rinse, and Starsan just before use.

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Old 05-04-2012, 02:19 PM   #9
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Quote:
Originally Posted by thisoneguy View Post
Tubing is cheap! Retire the boiled piece and swing by your LHBS and grab some more. I usually try to keep some extra around, just in case.
The nearest one is ~30mi away and only open at weird times. I have a 30min windows on Monday's (between when I get off work and they close) to make it. So maybe in 2wks I can make it in.

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To clean up the died on bits, soak in Oxyclean for a little while. It just dissolves those bits and then a good rinse, and Starsan just before use.
Now that is good to know. Thanks!
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Queue: King Tut ale, BIG barleywine, Desire mead, .
Fermenting:Denny Conn's vanilla porter
Secondary:
Bottled: <1.060: AHS Aniv Wit, lemon wheat, Blonde rye.
<1.090: How Rye I Am, Rye wheat ale, spiced tripel, tripel w/orange, baltic porter, skeeter pee lime and lemon w/cranberry, Milk stout.
<1.110: Reverend clone, IIPA. Chocolate RIS, Bourbon Barrel Quad, chocolate RIS w/oak & whiskey
>1.110 OG: Double W (inspired) stout, Choco milk Czar, Mephistopheles (inspired) stout..
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Old 05-04-2012, 11:26 PM   #10
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Buy one online. Probably including shipping it would not be much more that at the LHBS. Plus you're not paying for the gas to get to the LHBS.

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