My daughter washed her quilt for the first time in cold water with a color catcher. She has front loading washer and dryer and said it came out perfectly. All fabrics and batting are 100% cotton and I did not prewash them. The colors are very bright and she said that the color catcher came out of the washer only colored with the orange from the batik I used for one of the borders. No other bleeding occurred and the reds did not bleed at all, which was my major concern.