Don’t confuse rust with patina! Patina is a natural, beneficial, green tint that older metals may develop over time, while rust actively damages the coin. Patina can help protect your brass coins from rust, so you don’t want to wash it off. [2] X Research source
Don’t be discouraged if your coin is still dirty. Brass cleaning can involve a lot of trial and error before you get the results you want!
Scraping the coin can damage the metal.
Feel free to dry your coin off in direct sunlight—don’t worry, this won’t damage the metal at all.
You don’t need to let the coin soak in the baking soda paste at all.
Stick with regular toothpaste for this instead of a specialty brand.
You can add a spoonful of water to your ketchup cup so it spreads better over the surface of your coin.
