POP ROCKS® are small pieces of hard candy that have been gasified with carbon dioxide under superatmospheric pressure. When these gasified sugar granules come in contact with moisture, in someone’s mouth or in water, milk, soft drinks, etc, the candy dissolves and the gas retained inside the carbon dioxide bubbles is released, causing characteristic crackling and fizzing sounds.
What is the truth behind the Mikey Story?
If you want to know if he really exploded when he drank soda and ate POP ROCKS®, the truth is that… he did not! In fact, the actor who played little Mikey lives today in a completely unexploded form in NY.
The rumor got started that POP ROCKS®, because of the carbon dioxide in the product, would fizz up and when you drink it in conjunction with a can of soda they would explode in your stomach. The rumors became so bad that the FDA even set up a hot line in Seattle (WA) for people to call to dispel the rumor and assure parents that the candy was safe for children and it would not cause the stomach to explode if mixed with carbonated drinks.