Cinnamon, cayenne pepper, black pepper and ground hot pepper can be used to repel raccoons, according to Garden Guides. Applying homemade spices to outdoor areas is a humane way to keep raccoons away.
Raccoons have sensitive noses, and smelling hot spices irritates their nasal passages. Sprinkle the spices in the garden or any outdoor area. The spices are safe to apply on garden plants.
To cover a larger area such as outdoor trashcans, porches or decks, make a repellent spray. Boil an onion, a few jalapeno peppers and some cayenne pepper for 20 minutes. Let the mixture cool and then strain. Poor the liquid into a spray bottle, and coat the outdoor areas. Reapply every couple of days, and immediately after it rains.