I'd like to buy a 5 or 6 gallon container for drinking water. I don't like plastic. One option is a glass carboy. But it's easy to break a glass carboy. Another option is a metal container. I guess one option can be aluminum or galvanized milk can. I searched the web and all I found were old vintage milk cans which are pretty expensive. Are aluminum or galvanized milk cans (or water cans) still produced? Do you have a better suggestion for a can for storing drinking water (not plastic)?