Lemon peel uses: Lemon peels have several useful household applications beyond simply being thrown away. Their fresh citrus aroma can help freshen kitchens and refrigerators, while a vinegar infusion can be used as a homemade cleaning solution for suitable surfaces. Dried lemon peels can also be added to homemade potpourri or placed in rubbish bins to help keep them smelling fresher. Simmering lemon peels in water can further fill the home with a pleasant citrus fragrance.