Why Does Soda Explode in the Freezer?

February 15, 2024

Everyone has a story to share about the time they tried to speed-cool their soda in the freezer and ended up with a messy explosion. Frozen carbonated beverages are prone to exploding in the freezer because the water in them freezes and expands, pushing out the dissolved gas which can cause it to explode. This is because the freezing process decreases the solubility of the carbon dioxide, causing it to build up in bubbles near the surface of the liquid. The bubbles are filled with carbon dioxide and can cause a soda to explode if the pressure gets too high.

The freezing process is also influenced by the type of beverage and its container. Plastic bottles are less prone to bursting than glass bottles. The amount of carbonation in the soda can play a role, as well. Carbonated drinks that are more highly carbonated tend to be at a higher risk of exploding in the freezer because the dissolved carbon dioxide will take up more space in the frozen state, as explained by Encylopedia Britannica.

Whether a can of soda will explode in the freezer or not depends on a number of factors, including the temperature at which the can is frozen, the presence of impurities and the type of bottle. For instance, the type of plastic used to make the soda bottle may impact how much it expands upon freezing. Keeping the freezer organized and avoiding overcrowding can help ensure that soda bottles have adequate room to expand, reducing the likelihood of pressure buildup. Additionally, regular monitoring of the freezer conditions can reduce the likelihood of localized hot spots and other variables that could contribute to a soda explosion.


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