I like to put lemon or vitamins (those tablets that also create fizzyness) in my water and have been wondering if it is problematic to do so in my aluminium drinking bottle. I wouldn't normally think so, since soft drinks also often come in aluminium cans, but I'm not sure. Are aluminium salts even unhealthy?
Aluminum soda cans have plastic linings, because the acids can dissolve the aluminum. What that means for your drinking bottle, I don't know.