I always wash yardage fabric, get it out of the dryer promptly but still have some wrinkles, I use steam to get it out. I don't always wash fabric that I purchase in kits. The pieces are usually small. Sometimes that can cause problems. I did some hand quilting on a 18" wall hanging, used warm and natural batting. When I washed the quilt some of the pieces got that old-fashioned wrinkled look, some areas did not. I was disappointed with the way it looked after all the time I spent on it.