If using a blender to make Fresh Orange Juice you will need to add 1/4 cup water per orange. per orange) to a blender. 1. Peel and quarter the oranges (discarding the peel). 2. Add the orange and water (1/4 cup per orange) to a blender. 3. Blend until mostly smooth, then strain the fruit and juice through a fine mesh strainer to remove the thick pulp.