I have made one Jinny Beyer kit, "Polly's Poinsettias". I did not pre wash the fabric. Hope Color Catchers will help. I didn't have any problems with the instructions and I am a beginning quilter. There was enough fabric in the kit; but the amount was not generous. There was no room for error. If I make another of her quilts, I will probably pre wash by soaking in the bathroom sink.