I got a old quilt that had a few stains and smelled musty like a trunk. I soaked it in the machine overnight in dawn ultra dish soap, about 2T and about a 3/4 c of soda. I pretreated the stains with dawn before and rubbed them a little. It came out real well. I washed on gentle and hung it out to air dry in the shade. One woman that is all she will wash her quilts in is dawn ultra.