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General Category => Equipment and Software => Topic started by: dano14041 on November 20, 2010, 11:57:51 PM

Title: Good thermometers?
Post by: dano14041 on November 20, 2010, 11:57:51 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
Title: Re: Good thermometers?
Post by: euge on November 21, 2010, 12:12:58 AM
I really like my superfast Thermapen (http://www.thermoworks.com/products/thermapen/splashproof_thermapen.html).
Title: Re: Good thermometers?
Post by: lonnie mac on November 21, 2010, 12:33:59 AM
I really like my superfast Thermapen (http://www.thermoworks.com/products/thermapen/splashproof_thermapen.html).

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.
Title: Re: Good thermometers?
Post by: bluesman on November 21, 2010, 12:42:36 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

(http://iweb.cooking.com/images/products/enlarge/398796e.jpg)
Title: Re: Good thermometers?
Post by: Tim McManus on November 21, 2010, 01:55:24 AM
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.
Title: Re: Good thermometers?
Post by: kgs on November 21, 2010, 04:16:16 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

(http://iweb.cooking.com/images/products/enlarge/398796e.jpg)

Same here. Calibrates easily, too.
Title: Re: Good thermometers?
Post by: mabrungard on November 22, 2010, 01:42:01 PM
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.
   
Title: Re: Good thermometers?
Post by: richardt on November 22, 2010, 02:14:01 PM
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.   
Title: Re: Good thermometers?
Post by: bluesman on November 22, 2010, 02:18:21 PM

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.
Title: Re: Good thermometers?
Post by: denny on November 22, 2010, 04:45:14 PM

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.
Title: Re: Good thermometers?
Post by: bearcat on November 22, 2010, 08:19:53 PM
Another suggestion would be
http://www.palmerwahl.com/product_home.php?itm=604