I love basting sprays. Use them all the time. But on the last quilt I finished it left 2 stains on a darker tan color. It dried looking wet in 2 spots. I did wash the quilt in cold to try and get them out and nothing. They were both just bigger than a quarter. Not sure what happened. They showed up immediately. I didn't have a problem anywhere but those two spots. I thought maybe I used a bit too much. makes me a bit leery now