Welcome from central Illinois. I'd just wet them in the sink and lay them out on a towel. If you dissolve a handful of salt in the water it will help set the dye. You could also get a Color Grabber and put in the sink. I always use one when shrinking fabric. Got it at Hancocks. It looks like a rectangular white washcloth with black stitching around the edges--until you use it then it turns colors. It's good for 30 loads.