UltraOkay

Is it OK for your ultrasonic cleaner?

Copper

Yes
Check first
No

Copper handles ultrasonic cleaning, but the patina is not removed.

Updated from your answers.

How to do it

Time
3 min
Water
Lukewarm, 30–40 °C

One drop of mild dish soap. Dry straight afterwards.

With these answers we do not recommend the ultrasonic cleaner, so there is no how-to.

Pick your cleaner to see if it fits, which setting to use and what its manual says.

Why

Cavitation loosens dirt from copper but does not affect the oxide layer. The brown or green patina is chemical and needs a different treatment.

Watch out for

  • The patina stays
  • Collectibles: see coins

Sources

  1. Velleman – ultrasonic cleaner manual (PDF)

Cleaners that fit this

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    Clean it safely another way The safe way while you check

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