(1) Wash in hot water, with mild soap. Alkalies should not be used, as they darken the surface.
(2) If food is burned on, the dish should be soaked in water and then scoured with bathbrick or emery powder.
(3) Whiting may be used to brighten it.
ZINC
This is not used for utensils, but for table tops and for placing under stoves, etc.
Cleaning:
(1) Use hot water and mild soap. Alkalies and acids affect zinc and should be used with care.
(2) If stained, rub with coal-oil or a paste made of coal-oil and soda, and then wash in hot water.
GALVANIZED IRON
This is used for garbage pails, ash pans, stove pipes, etc. It is made by dipping sheet-iron into melted zinc.