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Topic: Roasting Termometer (3 msgs / 59 lines)
1) From: Eric B. Stauffer
Although far from inexpensive, I was wondering if:http://www.thermoworks.com/products/thermapen/tpen_home.htmlWould be a good roasting thermometer.
   Eric
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2) From: Rick Farris
Eric wrote:
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Far from it.  I have one of those, and while it is definitely the worlds
best cooking thermometer, it's characteristics are completely at odds with a
good roasting thermometer.
First, a roasting thermometer needs to be able to get into a tight spot,
possibly around an obstacle or two.  The thermopen was designed to poke
holes in objects and go straight in.  A thermo*couple* thermometer at the
end of a twisted pair of wires is perfect for this.
Secondly, a roasting thermometer needs to have it's display at some distance
(as in a foot, or two, anyway) away from the hot spot it's reading, or be
able to sit in a very hot spot.  The thermopen can only be 5" away, and note
that it *cannot* sit in heat.  The electronics part is not shielded and
would spew inaccuracies and melt if it sat in, say, a 435 air stream for
long.  A thermocouple, on the other hand, can be six or eight feet away from
its display device, if necessary.
The thermopen is optimized for instant reading.  You pay a lot to get a
reading in just a few seconds.  Coffee roasting is characterized by
(relatively) slowly changing temperatures over times measured in minutes.
The thermopen shuts itself off after a couple of minutes, and the only way
to turn it back on is to close it and open it again.  A thermocouple works
perfectly in this application.
I could go on, but I think you get my drift.  It was a good idea, though,
and I would not hesitate to recommend the thermopen for almost any other
kitchen task.  :-)
-- Rick
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3) From: Dan Bollinger
I prefer thermocouple devices, too.  At $69 this is pricey.  I've seen other
portable digitals at $20-30, but they only go to 500.  Make sure you get
the higher reading 572 model.
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