At what temperature does water boil and why would you want to know it?? Here’s a tip from The General. To check the accuracy of your thermometer, boil a pan of water. Place the probe of the thermometer into the boiling water and see how close it gets to 212*. It should read 212* exactly.
Not only have you checked the accuracy of your thermometer, but you have cleansed it. Thermometers used on different meats can cause cross contamination. If you don’t want to boil water every time you use your thermometer, buy some alcohol towelettes and keep them near your grill and stove.
I believe in the past we have lost BBQ contests because we did not check the accuracy of our thermometers. That is why when we do compete we always use more than one and do calibrate them beforehand.