Katinka Mills wrote:
>
> Hi Roman,
> In WA (AU) we use stainless steel for all food stuff, I was involved in
> manufacturing industrial mixers with heaters for making fudge (think a big
> (8cubic') cement mixer made of stainless steel with a second layer of
> stainless steel on the outside and oil inbetween so we can get even heating)
> we have drop in stainless steel temp probes with PT 100 sensors (they were
> thermally epoxied after the food end was weldeded closed (with tig (mig on
> SS is not very good, tig is beter)) well the first two probes died after 2
> weeks, seems the heating and cooling of the epoxy ended up cracking the
> sensor. now they are just slid down the tube with a good supply of thermal
> grease))


Hi Katinka. Yep stainless is pretty standard in
food production, but may not be best for use with
acidic liquids especially over long time periods.
I only mentioned it as a "just in case" scenario.
Cool fudge mixers! Interesting to hear about the
sensor failure.
-Roman

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