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SESK: Stuff Everyone Should Know · sesk.info/trav-bubbles-safe

Why are sealed carbonated drinks usually safe abroad, according to CDC?

Bubbles show a factory seal.

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  1. The bubbles kill all germs
  2. Soda is always boiled
  3. The bubbles show it was sealed at the factory ✔

Why: Fizz means the drink was sealed at the factory, not refilled. Bubbles do not kill germs, they just show the seal is real.

Huh, didn't know that: CDC notes a drop of glue can be used to fake a factory seal on bottled water.

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I poured root beer in a square glass. Now I just have beer.
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References

Answer: The bubbles show it was sealed at the factory. Fizz means the drink was sealed at the factory, not refilled. Bubbles do not kill germs, they just show the seal is real.

  1. CDC Travelers' Health: Food and Water Safety wwwnc.cdc.gov/travel/page/food-water-safety
    the bubbles indicate that the bottle was sealed at the factory
    Checked 2026-10-10.

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