Ha, Ha, I like the directness in the way you said that. Like, "Dude, trim your nails." Rinsing my helmet is a really good idea. I've never actually done that. It's a skater style helmet, with all kinds of skuffs. Like a lucky pair of old shoes. I don't want to wash the luck out of it. But maybe if my health is at risk.
Does anyone know anything about diet and the acidity of sweat?