It may be necessary to try more than one method to remove chocolate and
cocoa stains, since they usually contain other substances such as fat,
milk, starch, and sugar. First scrape off as much of the stain as
possible with a dull knife; then try one of the following:
Soap and warm water.—If the material is washable the regular laundering
in warm soapy water will often remove this stain.
Hydrogen peroxide and sodium perborate.—Sponge stubborn stains with
hydrogen peroxide. Or use a mixture of 1 level teaspoon sodium perborate
to 1 pint hydrogen peroxide. If the stain still shows, cover the
dampened spot with powdered sodium perborate and let stand an hour.
Rinse thoroughly. Be sure to test for color change on a sample of the
cloth or on the inside of hem or seam of the garment before using these
bleaches on the stain.
Carbon tetrachloride and pepsin.—If the cloth is not washable sponge
with carbon tetrachloride to dissolve the grease. Dry thoroughly, then
sponge with warm water, and dust with pepsin powder. Work the powder
into the cloth, let stand for 30 minutes or longer, then sponge with
water.