Yes the coins do come out looking almost new again from a wash machine. I've done that so many times I think I do it on purpose. What really ticks me off is I make hand written lists for almost everything. For a coin show, it's a really nice list of what I want, would like, etc. Then out of a washing machine, not readble at all. Coins sometime stay under that large aggitator in the middle for years. Think I've left almost anything possible in may clothing during a wash.