Author Topic: Good thermometers?  (Read 1002 times)

Offline dano14041

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Good thermometers?
« on: November 20, 2010, 04:57:51 PM »
Can anyone recommend a good thermometer? I broke my floating thermometer and dropped my digital probe thermometer in a bucket of starsan, So.... I need a new one or two, or three.....

Thanks!
Dano
Tulsa, OK

Offline euge

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Re: Good thermometers?
« Reply #1 on: November 20, 2010, 05:12:58 PM »
I really like my superfast Thermapen.
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Offline lonnie mac

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Re: Good thermometers?
« Reply #2 on: November 20, 2010, 05:33:59 PM »
I really like my superfast Thermapen.

I must second this from euge. As a bbq nut, and everything digital around me, the Thermapen is without a doubt my final answer when it come to decision time. Costly? Yep, a bit. But worth every penny.

Offline bluesman

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Re: Good thermometers?
« Reply #3 on: November 20, 2010, 05:42:36 PM »
I use a Proaccurate Digital Thermometer that is a great value. It is quick reading and reliable.

http://www.northernbrewer.com/brewing/brewing-equipment/testing-measuring/thermometers/proaccurate-digital-thermometer.html

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Offline Tim McManus

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Re: Good thermometers?
« Reply #4 on: November 20, 2010, 06:55:24 PM »
http://www.amazon.com/gp/product/B00009WE45/ref=ox_ya_os_product

$13.  Buy as many as you need.

The guy I brew with is a chef in NYC and these are the thermometers they use in the kitchen.
Tim McManus
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Offline kgs

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Re: Good thermometers?
« Reply #5 on: November 21, 2010, 09:16:16 AM »
I use a Proaccurate Digital Thermometer that is a great value. It is quick reading and reliable.

http://www.northernbrewer.com/brewing/brewing-equipment/testing-measuring/thermometers/proaccurate-digital-thermometer.html



Same here. Calibrates easily, too.
K.G. Schneider
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Offline mabrungard

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Re: Good thermometers?
« Reply #6 on: November 22, 2010, 06:42:01 AM »
Digital is good, but I also like to have the old mechanical dial thermometers in my system.  I run a PID controller with its thermocouple for my RIMS, but I appreciate having a double check with those mechanical dial thermometers.  Every once in a while, the PID will go haywire and need a reset and I still have a backup that measures in a different way.  The mechanical dial thermometers are very durable and provide relatively repeatable readings.

The other thing that is important is to calibrate your everyday thermometers and thermocouples using a accurate thermometer.  Its also important to perform that thermometer calibrations in your typical mash temperature range (say around 150F).  Although calibrating at 32F and 212F (@ sea level) is better than nothing, I have found many thermometers can be several degrees off their indicated mash temp when checked with an accurate standard.  There are too many ways to screw up a calibration when using the ice water bath and boiling water checks. 

I picked up a NIST standard mercury thermometer on Ebay that I pull out only when calibrating.  I stick all my thermometers in an insulated cup filled with hot water (~150F) and compare each one to the NIST standard's reading and adjust as needed.  The thing with a standard thermometer like this is that you'll need it only once or twice a year.  Quite actually, this is the sort of thing that a club should buy and bring to your club meetings a couple of times a year to provide members with a good calibration for their thermometers.
   
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Offline richardt

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Re: Good thermometers?
« Reply #7 on: November 22, 2010, 07:14:01 AM »
Great idea, Martin.  I also have noticed that same phenomenon when calibrating thermometers at 0 and 212 F. 
They all calibrate fine at those temps, but give widely disparate readings (3-10 F different) around 150 F.   

Offline bluesman

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Re: Good thermometers?
« Reply #8 on: November 22, 2010, 07:18:21 AM »

I picked up a NIST standard mercury thermometer on Ebay that I pull out only when calibrating.  I stick all my thermometers in an insulated cup filled with hot water (~150F) and compare each one to the NIST standard's reading and adjust as needed.  The thing with a standard thermometer like this is that you'll need it only once or twice a year.  Quite actually, this is the sort of thing that a club should buy and bring to your club meetings a couple of times a year to provide members with a good calibration for their thermometers.
  

+1

I also calibrate my digital thermometer with a calibrated lab thermometer from time to time to verify that it's measuring accurately.
This is a sound practice.
« Last Edit: November 22, 2010, 08:20:06 AM by bluesman »
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Offline denny

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Re: Good thermometers?
« Reply #9 on: November 22, 2010, 09:45:14 AM »

I picked up a NIST standard mercury thermometer on Ebay that I pull out only when calibrating.  I stick all my thermometers in an insulated cup filled with hot water (~150F) and compare each one to the NIST standard's reading and adjust as needed.  The thing with a standard thermometer like this is that you'll need it only once or twice a year.  Quite actually, this is the sort of thing that a club should buy and bring to your club meetings a couple of times a year to provide members with a good calibration for their thermometers.
  

+1

I also calibrate my digital thermometer with a calibrated lab thermometer from time to time to verify that it's measuring accurately.
This is a sound practice.

Same here.  I usually realize I need to do it when I have several batches in a row that under or over attenuate a bit.  And like Martin says, do it around 150 to simulate mash temps.
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Offline bearcat

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Re: Good thermometers?
« Reply #10 on: November 22, 2010, 01:19:53 PM »