Remove raspberry pulp or seeds by scraping the fabric with a spoon.
Rinse the fabric under cold running water to remove the raspberry juice.
Treat the fabric by adding 1/2 tsp. of fabric detergent and 1 tbsp. of vinegar to a sink full of water. Soak the fabric for 15 to 30 minutes.
Wash the fabric according to the directions on the tag, adding bleach if it is safe for the fabric.
Dab the stain with hydrogen peroxide if it is not yet gone. Let this sit for five minutes before rewashing the fabric.