Bacteria cannot breed on dry surfaces. Some cannot survive there at all. A freshly mopped floor is at its cleanest after it has dried. Armpits that are kept dry by antiperspirants are less cosy homes for bacteria — and fewer bacteria produce less body odour. Drying is a great thing. If we dry food it keeps for longer before it rots. We use this to our advantage: just think of foodstuffs like pasta, muesli, crispbread, dried fruit (such as raisins), beans, lentils, and dried meats.
