One tablespoon of classic Dawn liquid – the blue stuff One cup of hydrogen peroxide Dab onto stain with a clean cloth or sponge. Try it? According to WardrobeOxygen: This can remove red wine, blood, yellowed stains from sweat and deodorant, grass, even stains that have been laundered and are old. I have since used it on heavier duty fabrics with an old clean toothbrush, and have poured it directly on to stains to pretreat before washing.
Pinner says "Ok, I just tried this and it seriously did work. I did it twice on a burner that's had scorch marks for a year or more and they're gone! For anyone as OCD about cleaning as I am, this is a must!