If you use or have used cloth diapers then you are familiar with the awful ammonia smell. Sometimes a simple cold rinse before a regular wash does not completely remove the odor and you end up needing to strip your cloth diapers more or lay them in the sun to dry. One thing I discovered that really helps get rid of the smell is to add about a cup of vinegar to the cold rinse before you wash your diapers. If your diapers are really stinky then let them soak for 30-60 minutes in the water and vinegar. Then wash with cloth diaper friendly detergent and finish with a double rinse.