Noryl plates - Heat or acid sani?

[ParishBrewingCo]

I've read in various sources that it isn't advised to use hot water to sani Noryl plates in a P&F. I've also read that Noryl plates are steam sterilizable and have good heat resistance, which is completely conflicting and confusing. These P&Fs are pretty common and I'm curious if anyone is using hot water to sani. The melting point, decomp, and deformation temps for Noryl are higher than 100C, so I'm questioning the sources that state not to use hot water to sani... I'd like to use heat to sani my filtering equipment, pumps, and lines if possible.

Thanks for your feedback.

Andrew

[jfulton]

I used ~80C water to sanitize mine with pads in place of course on a recirc cycle of about 20 min and never had any issues with microbes.

[ParishBrewingCo]

No issues with plates warping and becoming leaky from lots of heat/cool cycles over time?

[jfulton]

No, I had that particular filter for about five years. No problems.

[Larry Horwitz]

heat kills

get 'em hot long enough and they will warp.

[jfulton]

When you spray them down with hot water when cleaning the yeast off the plates, they do temporarily warp but return to shape when cool. With the filter cranked down really tight they don't have much room to malform. But yeah like Larry said, if you hit them with near boiling h20, warping even slightly could cause a leak that would ruin them.