There's no law against it. However, cleaning coins in any way generally lowers their value to collectors, so you should be aware of that before you decide to wash that silver dollar you found in great-grandma's attic.
No reason why not. Though - if you're trying to clean the coins to their original state - you might need something stronger than just soap.
with soap and warm water
soap and warm water
Wash in a machine as with most clothing on a suitable cycle.
You wash a cut with soap and water, because the soap is a desinfectant ( I'm not sure if this is the english word)(it kills the bacterias) and then clean with water to remove the remaining soap,dirt, or blood.But be careful, and don't put TOO MANY soap on the cut!
plenty of water
wash it of with water and soap
Wash with soap and water.
Wash it with soap and water.
You can buy soap from almost any supermarket wash your hands,with water.
Wash it with a soap and water. You can rub alcohol. If the soap and water doesn't work.