Are we talking clad coinage or something more collectable? If it's clad coinage just getting the dirt off sometimes is enough. But that all depends on if you intend on spending it or dumping it. There are dozen of threads on the forum for cleaning coinage. Doing a search will provide you with hours of reading because this topic comes up every other day. Choose whether you wish to use electricity, something caustic, or simple. Remember though, the less money you spend to clean it the more your profit is. Tumblers are nice, but unless you're cleaning dimes, quarters and nickels, you're wasting money via electricity use to tumble a handful of pennies. The same goes with chemicals. They cost and you wasted profit.
Here is a method I have been using for a long time. It works if you intend on dumping into a coin counter or depositing them after you've rolled them.