One medium-sized orange yields around 2 ounces of orange juice. A standard-sized 8-ounce glass of orange juice requires approximately three or four medium oranges. Oranges can be juiced by hand or by using a hand-powered or electronic juicer.
Oranges should always be peeled before juicing, as their rinds contain oils that can cause indigestion. Fresh orange juice can be served on its own or mixed together with other juices to create flavorful combinations. Orange juice is also used in baking and other cooking methods to provide a citrus flavor to various dishes. Use freshly pressed orange juice immediately, or store it refrigerated for up to two days.