Cleaning:
The same as for zinc.
COPPER OR BRASS
Utensils made of these are heavy but durable and are good conductors of heat. They are dangerous, if not properly cleaned.
Cleaning:
(1) Wash in hot water, using a little washing soda to remove any grease, rinse well, and dry.
(2) If stained or tarnished, scour with salt and vinegar, then rinse thoroughly, and dry.
SILVER
This is used for spoons, knives, forks, and serving dishes, but never for cooking utensils, on account of its cost. It is the best conductor of heat among the house metals.