4 ms·

Some beryllium ceramics I heard...

• CapstanRoller 5y ago
  Only dangerous if you grind/crush the very obvious pink ceramic and inhale the dust. https://en.wikipedia.org/wiki/Berylliosis https://en.wikipedia.org/wiki/Berylliosis Modern magnetrons tend to use alumina-based ceramics instead.
• userbinator 5y ago
  As far as I can tell, that's a myth --- beryllia was only used in military radar magnetrons, not consumer microwave oven ones. It is extremely expensive, its other characteristics are not required, and its toxicity requires special handling measures during manufacturing, so alumina is used instead.