Ensure a healthy lifestyle by drinking water in utensils made from useful copper. Copper water jug that will provide your needs. which is durable and has various natural advantages. How to Wash Use Do not use a coarse peel to wash the inside of the vessel as it will scrape copper from the vessel. Instead, use one half of a lemon (you can squeeze the juice) and rub it on the inside of the ship. Let it stand for a few minutes and then wash off with pure water. Alternatively, you can also try with back-soda with water. Use this mixture to coat the inside of the vessel and let it stand for a few minutes and rinse the excess baking soda.