You can reduce lime deposits in your teakettle by putting in 1/2 cup (125ml) white vinegar and 2 cups water, and gently boiling for a few minutes. Rinse well with fresh water while kettle is still warm. Metal Cleaners and Polishes: aluminum: using a soft cloth, clean with a solution of cream of tartar and water. brass or bronze: polish with a soft cloth dipped in lemon and baking-soda solution, or vinegar and salt solution. chrome: polish with baby oil, vinegar, or aluminum foil shiny side out. copper: soak a cotton rag in a pot of boiling water with 1 tablespoon salt and 1 cup white vinegar. Apply to copper while hot; let cool, then wipe clean.
For tougher jobs, sprinkle baking soda or lemon juice on the cloth before wiping. gold: clean with toothpaste, or a paste of salt, vinegar, and flour. silver: line a pan with aluminum foil and fill with water; add a teaspoon each of baking soda and salt. Bring to a boil and immerse silver. Polish with soft cloth. stainless steel: clean with a cloth dampened with undiluted white vinegar.