Walder Science Center Kitchen Science Forums

Thursday, January 16, 2014

Using a deep fry / candy thermometer



When deep frying and making candy, the temperature of the liquids reaches a very high level. For example, caramelizing sugar heightens the temperature of the liquefied sugar to a level in excess of 300°F (149°C)! An oven thermometer which is manufactured to measure the heated air inside an oven is not adequate to measure the heat of the center of a liquid.

A special thermometer for candy making and deep frying is inserted into the liquid during the heating process. Usually the thermometer is very long for safety purposes so that you don’t burn yourself. Also, a hook attaching the thermometer to the side of the pot makes sure that it measures the temperature of the liquid and not of the pot.

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