To make a mixture for cleaning brass, combine 1 cup white vinegar, 1 teaspoon salt and sufficient flour to form a paste, according to Clark County Environmental Services. Spread the mixture on the brass and let it sit for 15 to 60 minutes. Rinse with water, and polish the brass.
Brass can also be cleaned with vinegar and salt, Clark County Environmental Services reveals. First, pour vinegar over the brass. Shake salt over the dampened surface and rub the mixture on the brass. After a thorough cleaning, remove the mixture with a warm water rinse, and then wipe the brass dry.
Lemon juice is also an ingredient in natural brass cleaners, reports Clark County Environmental Services. Combine the juice with cream of tartar or salt to make a paste, rub it over the brass and let it dry. Rinse off the dry paste with water, and then polish the brass. Another option is to rub a lemon slice dusted with baking soda on the brass. Rinse off any residue, and then dry the brass.
On its own, the acid and salt in Worcestershire sauce clean brass, the Baltimore Sun states. Pour the sauce on a damp cloth, and then rub the brass to remove the tarnish. Remove remaining sauce with a clean damp cloth.