Unfortunately no.

The liquid temperature and vessel temperature are different; the vessel
heats up quickly while the liquid absorbs heat over time, depending on the
contents and quantity.

I've tried IR but it didn't work well at all. Possibly the reflectivity of
the liquid, plus interference from steam/bubbles/etc.

On Fri, Mar 23, 2018 at 10:34 AM, Clint Jay <cjaysharp@gmail.com> wrote:

> It seems a very silly idea to risk having electronics drop into the food
> content, especially if it's 200C, can you not sense the temperature with
> some non contact means or perhaps attach a sensor to the outside of the
> vessel and compensate accordingly ?
>
> On Thu, 22 Mar 2018 11:13 pm K S, <kresho@gmail.com> wrote:
>
> > Hello list.
> >
> > I'm a long time lurker (~18 years?), usually have nothing to add above
> the
> > excellent content here.
> >
> > I need to monitor the temperature of the liquid in a cooking vessel whi=
ch
> > contains a rotating paddle/scraper that precludes me from simply
> inserting
> > a fixed probe. My first thought is to have a battery powered temperatur=
e
> > transmitter attached to the paddle - this would also provide a reading
> that
> > is averaged through the entire bowl as it moves through potential
> hot/cold
> > spots in the liquid. The sensor/probe itself could be mounted on the
> paddle
> > such that it is submersed in the liquid while the electronics could be
> > strapped to the paddle shaft that remains above the fill line, with a
> short
> > heat-proof cable in between. There will be steam and heat and oil
> splutter
> > there but I'm sure some protective measure could be employed to house t=
he
> > electronics. The height of the liquid may be up to around 40cm, and get
> up
> > to 200degC.
> >
> > A receiver could then display this temperature and eventually use it as
> > part of a control process.
> >
> > Has anyone done something like this? Or any advice to offer? An off-she=
lf
> > solution would be preferred but I'm not finding much. (Lots of wireless
> > sensors but either for ambient temps, or without rugged transmitters).
> I'm
> > thinking maybe build a small battery powered board with a 433MHz tx
> module
> > and a suitable receiver but am hoping for something perhaps quicker to
> get
> > up and running.
> >
> > TIA.
> >
> > Kris.
> > --
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> > View/change your membership options at
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> >
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