To calibrate your thermometer, you must use either boiling (212-degree F/100-degree C) or freezing (32-degree F/0-degree C) water, depending on the range of your thermometer
To adjust to boiling water: Use a boiling pan of water - remember that the water from your espresso machine is not supposed to be boiling, so don't use it as a guide
To adjust to freezing water: In a glass, add crushed ice to cold water until you have a slushy consistency
This tool fits snuggly onto the bolt situated right below the thermometer face
Calibration tools come in a set of 12

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 2.1 inch
Height : 0.6 inch
Length : 4 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 1.44 ounce (View shipping rates and policies)

ASIN : B002DMLF2K