Urban Nature Culture's water jug with mango lid is another eye catcher to your home collection. But more than that, is it a water jug that helps keep your water fresh and healthy. It is proven that the copper used in brass makes it germicidal, killing bad bacteria and keeping your water fresh. Egyptians used it to store their water and Ayurveda teachings knew this long before scientists even knew that bacteria existed. There's many health benefits from copper water, as it's positively charged.