I use the Carbona brand dye grabber which has a control dial on the back. It works for up to 30 washloads. I keep a pen handy & mark it off with each use. They are white to begin with, but turn green with use. Of all the fabric that I have washed only one bleed & still can't get it all out of the white part of the print. Will have to use it in a quilt instead of the garment it was meant to be.