When I do wash quilts it is with ORVUS.......purchase at Farm&Fleet here. It is a liquid soap used to wash the "sensitive areas of cows" it is very gentle. It is basically the same liquid soap that I have seen in some quilt shops-a small jar for almost $10, whereas I can get a jug of this for less...........a capful or two in the washer on gentle and no harm done to quilt.............