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Is a Plate Chiller oven safe?


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#1 Beergod

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Posted 19 December 2014 - 09:12 PM

Hi guys, haven't been around in forever--i am impressed to see a lot of names I still remember.  I seem to remember that at least one member was/is a metalurgist.  I haven't brewed in a long while and thought I might toss the chiller in the oven at 300F or so for an hour to kill any crud that might be hiding in there.  So my question, my plate chiller is made of multiple metals and those metals expand at different rates with heat--will the differential expansion damage the chiller or will it be ok?



#2 positiveContact

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Posted 20 December 2014 - 07:00 AM

no idea but perhaps a very slow ramp up and ramp down would make it safer to reduce the effect of the different rates of expansion/contraction.

 

I mean - you are already putting 212F and then something around 30F through there at the same time right?


Edited by Evil_Morty, 20 December 2014 - 07:01 AM.


#3 Buzz Buzzard

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Posted 20 December 2014 - 07:06 AM

Wouldn't pumping boiling hot sanitizer through it be even more effective?

I would be afraid of something stuck in there, using that extra heat as an opportunity to glue itself in place.

 

Just pumping hot cleaner through it adds the removal of the debris not just killing it.


Edited by Buzz Buzzard, 20 December 2014 - 07:06 AM.


#4 HVB

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Posted 20 December 2014 - 07:46 AM

I have read of people baking them and then going through a pdw and starsan sequence. From my reading, nothing in it should melt at that temp. If you have not used it in a long time a good pdw rinse or caustic (see faq section for more) would be my first choice.

#5 djinkc

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Posted 20 December 2014 - 08:02 AM

The specs on my duda diesel is -319 to 430df. I'd cook it at 425 to ash anything in it if I was concerned. I haven't so far.

#6 BlKtRe

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Posted 20 December 2014 - 10:09 AM

I suppose baking a plate you know nothing about if it was dirty might be worth a try but using hot PBW in a backwards loop after use then sanitizing with SS or boiling wort before use is all thats needed to keep these things in excellent service. The Sharron I traded for with Dj many moons ago has never been baked using the hot PBW and SS loop routine has had many many 100's of gallons of wort pumped through it and has zero issues with dirt or bacteria. 



#7 SchwanzBrewer

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Posted 21 December 2014 - 08:47 PM

I bake mine on occasion, but I put a little distilled water in there and let it steam out.

 

Be careful using caustic in the plate chillers, long contact time (30 mins +) will erode the copper. 



#8 Steve Urquell

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Posted 22 December 2014 - 05:17 AM

According to this months BYO. Dry heat sterilization occurs at the following temps for plate chillers. From "How to Brew"338f: 60mins320f: 120mins302f: 150mins284f: 180mins250f: 12 hours

Edited by chils, 22 December 2014 - 05:18 AM.


#9 BlKtRe

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Posted 22 December 2014 - 10:15 AM

I bake mine on occasion, but I put a little distilled water in there and let it steam out.

 

Be careful using caustic in the plate chillers, long contact time (30 mins +) will erode the copper. 

 

Good thing PBW isn't a caustic! 



#10 positiveContact

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Posted 22 December 2014 - 10:26 AM

Good thing PBW isn't a caustic! 

 

I think he was replying to drez who did mention caustic as an option.



#11 BlKtRe

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Posted 22 December 2014 - 10:36 AM

I think he was replying to drez who did mention caustic as an option.

 

I use caustic in my keg/fermenter cleaner. On brew day hot PBW for my hoses, pump, and plate works awesome. 



#12 positiveContact

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Posted 22 December 2014 - 10:54 AM

I use caustic in my keg/fermenter cleaner. On brew day hot PBW for my hoses, pump, and plate works awesome. 

 

never used it myself.  just TSP, oxiclean and PBW.  I guess also baking soda to try to combat odors but that's pretty much it.



#13 HVB

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Posted 22 December 2014 - 11:01 AM

never used it myself.  just TSP, oxiclean and PBW.  I guess also baking soda to try to combat odors but that's pretty much it.

Nor have I, no need for it, but I remembered the post in the FAQ and thought it may be useful.



#14 SchwanzBrewer

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Posted 22 December 2014 - 01:15 PM

Nor have I, no need for it, but I remembered the post in the FAQ and thought it may be useful.

 

It works well, it will get the crud out. I've done it before. But, hot pbw works great too. 



#15 BlKtRe

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Posted 22 December 2014 - 01:19 PM

I find PBW works better than the home made mix. 




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