The World Around Us

Chemicals in Food

How do Pop Rocks® candy work?

Pop Rocks® is a carbonated candy like soda is a carbonated beverage. The fizzing that goes on in your mouth is due to carbon dioxide (CO2) bubbles escaping from the candy. To make this unique treat, the ingredients are heated, exposed to high pressures of carbon dioxide, and then cooled to trap the CO2 inside the candy.


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