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View Full Version : Digital thermometer in coffee urn for bottling



randomseeker
02-17-2015, 05:56 AM
I am looking for a recommendation for a digital thermometer ....

I use a 100 cup coffee urn with an old galvanized sap bucket with its bottom cut out fit into the urn lid. A felt and paper cone filter sits in the bucket with a bungee cord holding the felt filter in place wrapped around the outside of the bucket. It works great. I don't use the heater in the urn. I finish in a Lapierre propane finishing tank and pour directly from the finishing tank into the filtering urn. Since the syrup is at temperature (217 at my altitude) by the time it settles into the urn it is around 200 to 205 degrees. I carefully carry the urn into the house where I set it on a short stool and start bottling.

I use a kitchen digital thermometer with flexible probe, dropping the probe through a hole on the side near the top of the urn and the probe settles to the bottom of the urn. Now I can bottle keeping an eye on the temperature. This system works quite well as I find that I can usually empty the urn into bottles before the digital thermometer hits 180. Every 12 bottles I stop long enough to put them back into the bottle box upside down for 15 minutes.

My problem is the thermometer. I go through one or two every year. Either the electronics goes weird or the probe stops reading accurately (it reads widely off when it goes). Can anyone recommend a digital thermometer with a flexible probe for my purpose? I am not cost sensitive (which is another way of saying I am cost stupid. Hell, if I ever figured out what this goo actually costs me to make, well ...)

Thanks in advance.

buckeye gold
02-17-2015, 08:52 AM
You will find very few if any probes that will hold up to total submerging at an economical price. To do that you need a analytical grade probe sold by professional instrument suppliers. Heres one I found on Amazon, but I know nothing about it.

http://www.amazon.com/DT15A-Test-Instruments-Thermometer-Thermistor/dp/B000TJXYJ6/ref=sr_1_4?s=industrial&ie=UTF8&qid=1424180985&sr=1-4&keywords=submersible+thermometer#productDetails

Tor Haxson
02-17-2015, 08:28 PM
I like my thermoworks chef alarm.

http://www.thermoworks.com/products/alarm/chefalarm.html

Any of the consumer stuff I buy fails like you describe.

I attach the probe to a wire to keep it from the bottom.

For two years and many uses besides sugar this is a nice tool.

For finishing on the stove top the alarm feature is nice.

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Tor