Place a piece of white bread over the beet juice stain on your carpet. Gently press the bread into the stain to absorb the beet juice.
Pour 2 cups of warm water into a bowl. Add 1 tablespoon of dishwashing detergent.
Dampen a clean cloth with the soap and water mixture. Wring out the cloth to remove excess moisture.
Blot the beet stain with the moist cloth. Press a dry cloth into the carpet to absorb the beet stain. Alternately sponge the stain with the soap solution and blot it with a dry cloth to remove as much of the red color as possible.
Treat any remaining beet stain on the carpet by dabbing it with a mixture made from 1/2 cup of warm water and 1 tablespoon of ammonia. Rinse the carpet by sponging it with a moist cloth.
Press a dry cloth into the carpet to absorb liquid. Aim the airflow from an electric fan toward the carpet to speed the drying process. Fluff the carpet fibers with your fingers to blend them with the surrounding area.