why does my glass coffee carafe keep making popping noises

Why Does My Glass Coffee Carafe Keep Making Popping Noises?

Glass coffee carafes can be a popular way to make coffee, but some make a strange, popping noise during heating. While this noise is normal, there are a few things which could be causing it.


When water is heated, it creates steam. When it reaches a certain temperature, it will boil, and this boiling can cause the glass of the carafe to expand and make a popping sound.


Glass has a lower melting point than ceramic or metal, so it can be deformed when exposed to high temperatures. This can also cause a popping sound.

Air Pockets

If there are any hidden air pockets in the carafe, when it’s heated, the pressure can cause them to burst. This can also cause a popping sound.

What To Do?

If you notice your glass carafe making popping noises, there are a few things you can do to try and prevent it:

  • Preheat the carafe – If you preheat the carafe by filling it with hot water and letting it sit for 10 minutes, this can help reduce the popping sounds.
  • Use lower temperatures – Keeping the temperature lower when making coffee can prevent the carafe from expanding and making popping noises.
  • Don’t fill it too full – Make sure to leave some room at the top of the carafe so that the expanding steam can escape.

Popping noises from your glass carafe are usually normal and don’t indicate any underlying problems, but if you are concerned, it is best to talk with a professional about it.

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