Mentos brand mints cause the carbonation in soda to very rapidly come out of solution. You can find plenty of photos and videos of it online, and I’ve personally confirmed it with some mentos and a 2-liter bottle of generic soda. Does anyone know why this happens? I’ve found some explanations online about the arabic gum in the mentos lowering the gas solubility, but that doesn’t make any sense to me. Arabic gum is mainly polysacharides and glycoproteins..I don’t see why that would suddenly lower the gas solubility.