I have tried all the tricks I've seen and have had no success. I still have a pile that I'm waiting til I have a front load maybe steam washer to try one more time, but I haven't been able to successfully use any of it. Even if I were making something for a smoker, I can spend more than five minutes working with it because I'm immediately sneezing. Maybe the Texas sun could clean it out on the line, but then you'll have fading to deal with. Good luck!