The Japanese Trick To Inflate Balloons (Never Use Helium Again)

The chemical reaction between baking soda (a base) and white vinegar (a weak acid) forms carbon dioxide. Given that the reactants are solid and liquid respectively, and that one of the products is gaseous, the final volume is greater than the initial volume, so the gas causes the balloon to inflate.

Here’s how to do it:

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You will need:

  • 1 empty 2-liter bottle.
  • 1 funnel.
  • 500 g of baking soda.
  • 500 ml of white vinegar.
  • Balloons of your choice.


Fill the balloon with baking soda. The balloon should be half full. Proceed to add the corresponding part of white vinegar into the bottle, tie the balloon to the mouth of the bottle, without allowing the materials to mix. Now very carefully, allow the materials to mix. Your balloon will immediately begin to inflate.

Suggestions: Do not forget to take the necessary measures to avoid accidents, such as gloves and protective glasses.

Now that you know this useful technique to inflate balloons quickly and cheaply, go ahead and try it and recommend it.

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