I am a Color Catcher fan and wash my completed quilts before I gift them. I want to know what it does in the wash. I also prewash my fabric. I got burned once with a dark blue batik...I learned my lesson. When I gift a quilt, I give a brief page of instruction on the care and feeding of a quilt. I add in some Color Catchers. Sometimes I put a care label I make and sew it into the binding on the back.