Hard Candy Chemistry

Did you know that hard candy is actually a glass? Richard Hartel, professor of food engineering at the University of Wisconsin-Madison, boils a mixture of sugar, water and corn syrup at temperatures over 300 degrees Fahrenheit to produce hard candy.
The video demonstrates how the molten liquid candy cools to form what from a technical standpoint actually is a glass. Unlike window glass made of silica, this tasty glass is made of sugar.

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