Kettle is a type of pot specialized for boiling water, with a lid, spout, and handle, or a small kitchen appliance of similar shape that functions in a self-contained manner. Kettles can be heated either by placing on a stove, or by their own internal electric heating element in the appliance versions.
Brass kettles were used for most sorts of foods, but specific accounts of what was prepared in brass kettles include meat, pickles, vegetables, soup, jams and jellies, and large brass kettles were used for evaporating salt, melting tallow for candles, and laundry and dyeing. The use of copper or brass cookware which does not have a tin lining is considered by many unsafe today and even when it was in common use was questioned by some in the preparation of acidic foods. It was a common practice to make cucumber pickles in brass or copper pots because the vinegar reacted with the metal and made the pickles greener than when made in iron pots. Some said doing so was unhealthy while others insisted there was no danger so long as the pot was properly cleaned before and after use