PTFE

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Rubbery
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PTFE

Post by Rubbery » Sun Feb 18, 2018 11:39 am

Is PTFE food safe?

My hop filter slides into the back of my boiler tap, but is a bit loose now and I can not get a siphon. I am thinking of a couple of turns of PTFE tape, but will that be ok in a 90 min boil?

lord groan
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Re: PTFE

Post by lord groan » Sun Feb 18, 2018 11:54 am

I hope so!
PTFE is what they use on non-stick frying pans, it must have been passed as safe, I've used it for plumbing joints in my homebrew kit for ages. It'll not be damaged in a 90 minute boil, When I strip the joints for cleaning after a brew the tape is unchanged.
hth

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Rubbery
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Re: PTFE

Post by Rubbery » Sun Feb 18, 2018 12:01 pm

Thanks for quick reply. I am mashing in now, so will get the boil on before lunch. PTFE at the ready!

chris2012
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Re: PTFE

Post by chris2012 » Sun Feb 18, 2018 12:11 pm

I use PTFE gaskets and PTFE tape too, I always assumed it was food safe.

Edit:

I just wikipedia'd it:

"While PTFE is stable and nontoxic at lower temperatures, it begins to deteriorate after the temperature of cookware reaches about 260 °C"

So I think we're safe ;)

Also I found this cool -
"It is used in containers for storing fluoroantimonic acid, a superacid"

Which apparently is one of, or the, strongest acid. Pretty nifty for a material you can pick up from the DIY store.

McMullan
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Re: PTFE

Post by McMullan » Sun Feb 18, 2018 2:46 pm

There are different types of PTFE. Never considered it not being 'food safe' , though :?

Fil
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Re: PTFE

Post by Fil » Tue Feb 20, 2018 12:48 am

ptfe is one of the most inert plastics, as well as very slippy ;) its one of the very few materials approved by the 'common wisdom of distillers' in their equipment and afaik few are more anal about the materials employed in the process than the chaps that chase pure ethanol.. just saying @Jim not discussing the subject..
ist update for months n months..
Fermnting: not a lot..
Conditioning: nowt
Maturing: Challenger smash, and a kit lager
Drinking: dry one minikeg left in the store
Coming Soon Lots planned for the near future nowt for the immediate :(

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Rubbery
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Re: PTFE

Post by Rubbery » Tue Feb 20, 2018 8:50 am

... and it works a treat! The hop filter sucked my boiler dry =D>

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