I honestly was not sure about this question so I looked it up and here is what I found from:
How To Juice a Pomegranate (Easy and Quick)
What you need:
1 sharp knife
1 large bowl
1 food processor
1 fine sieve
*Cut the pomegranate in half.
*Hold the half pomegranate in your palm with cut side down as picture shown. Place a large bowl underneath. Use another hand to smack the rind with a large spoon. The seeds should eject from the pomegranate directly into the bowl, leaving only a few deeply embedded arils to remove.
*Repeat this step with another half until you get all the seeds out.
*Transfer the seeds into a food processor，briefly grind the seeds. Don’t blend too long, because the juice becomes bitter if too many hard seeds inside are broken.
*Strain the juice through a fine sieve with the help of a tablespoon and lightly press. You’ll get clear and fresh pomegranate juice.
I have attached the products needed below that you may not already have.
Answered on 12/21/2011 by Molly from Boulder, CO