The best thermometers to use when making soap are either Candy thermometers or Digital infrared.
Getting an accurate temperature is a very important part in soap making. It can mean the difference between having your soap turn out well, or having to throw it all away.
Here is a little information about the two different types of thermometers for soap making.
The Candy Thermometer
The Candy Thermometer which is also known as a deep fry thermometer, will measure from 100F to 400F.
This variety is encased in a round glass and comes with a clip that will easily attach to the inside of your pot. (make sure it doesn’t touch the bottom of the pot) Amazon has a great selection of these are relatively reasonable prices.
You should not have to measure any temperatures above 190F but you will need to monitor the temperatures of your oils to make sure they do not get to hot…..all oils have a flash-point, meaning a temperature at what point the oil will burst into flame.
You will find a flash-point listed on the containers your oil came in.
The inside of the candy thermometer is either mercury or alcohol, this rises giving the temperature.
I prefer the alcohol version over the mercury to eliminate myself from being exposed to the mercury should the thermometer ever break.
Be sure to keep your soap making thermometer separate from your kitchen thermometer.
Digital Infrared Thermometer
A digital infrared thermometer is a quick and safe way to check your soap oils and water/lye mix temperatures.
This thermometer uses infrared to detect temperatures and does so in seconds.
The infrared type of thermometer is extremely accurate, which will eliminate some of the variables that could ruin your batch of soap.
Cleaning is not needed with these types of thermometers as they never touch the liquids. For these reasons it is one of the best for soap making.
Most of these digital type thermometers are small and easy to use, have liquid crystal displays and will read in both Celsius and Fahrenheit.
MeasuPro Laser Infared Digital Instant Read Thermometer, Blue and Grey
If you are undecided on which to use, click on the pictures above for more information on each.
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