UltraOkay

Is it OK for your ultrasonic cleaner?

Coins (ordinary)

Yes
Check first
No

Ordinary coins can be run – collector coins should never be cleaned.

Updated from your answers.

A few questions to be sure

Could the coin have collector value (old, unusual, commemorative)?

How to do it

Time
3 min
Water
Lukewarm, 30–40 °C

Only circulating coins with no collector value. Do not run different metals together.

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

Manuals list coins as suitable. For collector coins, any cleaning lowers the value because the patina disappears, and ultrasonic cleaning does not remove oxide anyway.

Watch out for

  • Collector value: do not clean
  • Patina and oxide stay

Sources

  1. Wikipedia – Coin cleaning
  2. Jaycar – ultrasonic cleaner manual (PDF)

Cleaners that fit this

Ranked by fit, never by commission.

How we rank: models made for this kind of item first, then how easy the model is to buy where you are, then how much of its spec is confirmed in a source.

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    Good to have for this

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    Clean it safely another way The safe way while you check

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