Q: I switched to a mineral salts deodorant crystal to try to get away from aluminum. Now I read that it also has aluminum (it's marked "ammonium alum"). The crystal works great against odor, but I don ...

Breaking a stud or a bolt is a pretty common shop catastrophe, but one for which a fair number of solutions exist. Drill it out, shoot in an extractor, or if you’re lucky, clamp on some Vise-Grips and ...

Alum, which is found in many “natural” rock or stone deodorants, is aluminum potassium sulfate. Ammonium alum (ammonium aluminum sulfate) is also used in deodorant crystals. We don't know whether ...

Q. I switched to a mineral salts deodorant crystal to try to get away from aluminum. Now I read that it DOES have aluminum (it’s marked “ammonium alum”). The crystal works great against odor, but I ...