I'm just about to start another kingsize quilt hand pieced- all kaffee fassett fabrics. I had a lot of his fabrics on hand- some precuts, some scraps etc. I serged all the edges of my new fabric and all the pieces of the precuts except the jellyrolls. I did toss in couple other pieces of Asian fabric, too. I put a colour catcher in the washer and dryer and got colour on both(colour catchers). No red fabric in the pile either. I'm an old school washer from making garments, but I don't like taking a chance when I spend nearly a year making a quilt and having it ruined. it's a simple step. Then I do starch to death! What ever makes you happy is my motto- we all have out quirks. We all don;t like the krinkled look after a quilt it washed depending on the pattern.