1 cup soap flakes
1/4 cup white vinegar
1/4 cup whiting
4 cups boiling water
2 tablespoons salt
Mix soap, whiting, and salt together in a glass or enamel pan. Stir in vinegar and slowly add the boiling water until the soap is thoroughly dissolved. Let cool.
Store solution in a one-quart glass jar.
To use, shake well and pour about 1 tablespoonful of the solution onto a clean, soft cloth and apply to brass. Gently rub, turning the cloth often. Apply more solution until tarnish is gone. Buff with a clean, soft cloth until brass is dry and shiny.