An easy way to calibrate your thermometer is to put it in ice water and adjusting it to read?

The Ice-Water Method is one the ways to calibrate thermometer. The steps are as follows:

1.In a large glass, put ice and then fill with cold water. Stir.

2.Let it sit for 3 minutes.

3.Place thermometer at least 2 inches deep in the ice water, avoiding to touch the sides of the glass. Stir.

4.Wait 30 seconds and the thermometer should read 32°F (0°C).

Put the thermometer stem or probe into the ice water. Make sure the sensing area is under water. Wait 30 seconds or until the reading stays steady. Adjust the thermometer so it reads 32˚F (0˚C).

Explanation:

Hope this helps