How do you clean a copper bowl? It is tarnished(?) I don't know if Brasso cleaner for silver and brass will do the trick.
Copper kitchenware is usually cleaned with lemons cut in half and dipped in salt to add an abrasive
Cut a lemon in half and pour salt on the open side of the lemon. Rub this onto tarnished areas of the copper pot. The salt acts as an abrasive while the lemon cleans the pot. Commercial tarnish removers can be used, but this method is cheap and works well. Mix a paste of lemon juice and salt to use on copper cookware that just needs to be cleaned. Use a soft cloth to rub the mixture over the entire surface. Rinse the pot with warm water and dry with a soft towel. You can use a cloth to polish the copper surface after cleaning. Soak copper pots overnight in a sink full of soapy water to remove any stuck-on foods or grease. Use a soft cloth and warm, soapy water to wash the inside of the pot. Using abrasive materials or scouring pads can scratch the lining on the copper, introducing the copper surface to your food. Copper pots are lined with a metal so copper does not touch the food because it is toxic. Scratching the lining off can be harmful to your health. Clean tarnished copper utensils by placing them in a boiling pot of water. Mix 1 tbsp. of salt and 1 cup of white vinegar. Boil for several hours and then wash with warm water and soap. Rinse the utensils and dry them with a soft cloth.
