Making bitter spray is a simple and inexpensive way to protect your plants from pesky animals. To make the spray, you'll need one cup of apple cider vinegar, two tablespoons of cayenne pepper, and one tablespoon of liquid dish soap. First, mix all the ingredients together in a large bowl or bucket until they are completely combined. Once everything is mixed well, pour the mixture into an empty spray bottle and shake it up so that everything is distributed evenly throughout the solution. After that's done, you can start spraying away - just be sure to avoid getting any on yourself! You may need multiple applications if animals keep coming back for more munching - but with this recipe at least you know it won't harm them in anyway!