How well does lemon juice clean a quarter?

pretty well acually every science prodject that has been shown proves that its better then anything else most people have used so far If you're bothering to clean the quarter, you must care about it. And if you care about it, you SHOULD NOT use lemon juice to do so. It scars the coin and leaves acid marks, which devalues it immensely. This goes for all coins. You should ask a professional how to deal with dirty coins.