Someone sneaked into Inspector Collector's study and stole his "Leave Coin Cleaning to Professionals!" sign. In its place, the thief posted the following methods for cleaning coins at home.
Which of these methods can be used to clean a really grimy coin? And which methods were put here to trick people into ruining their collectibles?
DON'T TRY any of these methods until you've clicked "But is it safe?!" and checked out the method.
In the wrong hands, coin cleaning can be a dirty business. You've learned what not to do. But should you clean your coins? Click here for an answer.