Making a Proper Ice Bath
Ever wonder why your thermometer readings are way off when you test them in an ice bath? It’s likely because you haven’t taken the care to create a proper ice bath. Here’s how to be sure the ice mixture in your glass is at the ice point (32°F, 0°C) every time—in 4 easy steps.
(Note: for a discussion of boiling water tests and other calibration points, see Is One Calibration Point Enough?
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- Is One Calibration Point Enough? | Thermapen.com - [...] probing comment on the YouTube comments page of our recent “Making a Proper Ice Bath” video deserves further explanation. ...
- Holiday Cooking Tip #3 – Calibrate Your Thermometer | Spice Guru Recipes & Tips Blog | TableFare the makers of SpiceCare - [...] wasn’t until I recently saw a post about calibrating thermometerson ThermaPen.com that I realized I didn’t have the process ...
- Thermapen... - Page 7 - Home Brew Forums - [...] liquid is changing by that much.)*You could check the Thermapen in a properly made icebath (see: http://www.thermoworks.com/blog/2010/10/making-a-proper-ice-bath/) and it ...
- The So-Called “Speed Button” | Thermapen.com - [...] or liquid that is being cooked the temperature is actually in flux and not stable like it is in ...







Wow, never knew this. thanks for the info
I understand that the freezing temperature of water changes slightly due to atmospheric pressure. What altitude would you have to be at before it would register as a tenth of a degree higher on the Thermapen?
Scott, you won’t see any change in the freezing point based on altitude or atmospheric pressure–that is why it is such a great temperature at which to test thermometers. You will, of course, see fairly significant changes in the boiling point of water based on altitude and atmospheric pressure. Use our handy Boiling Point Calculator to calculate the boiling point where you live. Thanks!
Here’s some more reading, if you’re interested: http://www.animations.physics.unsw.edu.au/jw/freezing-point-depression-boiling-point-elevation.htm