No need to feel foolish. There might be a bit of dye left in the stove when all the alcohol burns out. I doubt you could use it as an antiseptic with the dye in it if you have your alcohol do double-duty. But I've been doing this for a few years now and haven't had any problems. The best part is cooking in the dark. You can shine the light in the stove or measuring cup and can see the amount being used.