I prewash in hot water and cold rinse. My washer is set with cold water rinses. I dry on hot temp for only a few minutes. When I made the first couple baby quilts before gifting them, I washed again but in cool water and gentle cycle and low heat dryer. Sent a note these were the laundry instructions suggested. I did cross hatching/linear quilting about 1 1/2" apart. It didn't get really crinkly, which is how I wanted it. I also used a cotton batting and prewashed it. My cousin is a longarmer in Florida. She uses what her customers tell her to use and helps with any questions. She gives them a receipt and also has an order form to write down details from batting to templates to thread best for the quilt. She also notes if it will be for a utility or just display.