BBC Learning Zone Clips

CLIP 2168

Optimum temperature for making fudge and toffee

Optimum temperature for making fudge and toffee
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Key Info
  • Optimum temperature for making fudge and toffee
  • Duration: 01:26
  • Justin Coope, a fudge and toffee maker, explains how important it is to measure the temperatures of fudge or toffee mixture carefully to ensure it doesn't become too soft or too hard when it cools. He explains he needs to heat fudge to 118 degrees Celsius while toffee needs to be heated to 140 degrees Celsius. He uses a digital thermometer to measure the temperature. Chocolate burns more easily and can only be heated to about 30 degrees Celsius.
  • Subject:

    Science

       Topic:

    Changing Materials: Reversible Change

  • Keywords: melting, temperature, measuring, ingredients, thermometer
Ideas for use in class
  • To highlight the importance of measuring accurately, to use around changes of state, to help to design an experiment which demonstrates that different materials have different properties when melted.
Background details
  • Clip language : English
  • Aspect ratio : 16x9

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