Place orange peels into a large pan of water. Simmer on the stove for at least one hour. Remove rinds from the water and skim the oil from the surface. Mix the oil at a ratio of 2 ounces of oil per gallon of water. *Orange oil works well at repelling flies, mosquitoes,ants, roaches and ticks. *Use orange oil mix to refresh your refrigerator, dishwasher,and microwave by simply spraying the mix on and wiping it off. It's that simple!