Blot up fresh apple juice using white paper towels. If the apple juice has dried, scrape off the crusty particles using a dull knife.
Pour 1/4 tsp. of liquid dish soap into a container, and stir in 1 qt. of water to concoct a soapy solution.
Dampen a rag with the solution, and blot the apple juice stain with it. Dissolve as much apple juice stain as possible.
Add water to a spray bottle, and spray the soapy carpet with the water.
Blot the excess water off the carpet using paper towels.
Inspect the carpet for stubborn apple juice stains. If any remains, dampen a clean rag with 3 percent hydrogen peroxide.
Blot the stubborn apple juice residue with the hydrogen peroxide, and completely dissolve the remaining juice stain. No rinsing is necessary.