This Pineapple Grapefruit Juice is the perfect combination of tart and sweet. Adjust the amount of grapefruit if you prefer less tartness. It's made easily with a cold press juicer.
Prepare the pineapples and grapefruits (peel and cut if necessary for your juicer). Place the ingredients in the juicer jar, close it, turn on the juicer, and let it extract the juice. Serve immediately.