Originally Posted by mmdquilts
I don't usually unless I'm afraid it will bleed. I usually test a small piece in a white coffee filter soaked in a bit of water to see if it does
Do this experiment, wash a load of clothes with plenty of colors, that doesn't have anything new in it, and throw in a color catcher. Bet the color catcher comes out with dye on it. Before you threw that color catcher in you didn't even know any of the dyes were bleeding but it wasn't a problem either. I have clothes that I've had for at least a couple of years that are still bleeding dye. Nothing picks up the fugitive dye though so it's not a problem.