Their juice selection varies by store and there is a limit of one 12-oz cup per person, while supplies last. Unlike a lot of their deals, you don't need a coupon to take advantage of this one.
The deal serves to highlight the company's new juice platform, which looks to take advantage of the juicing trend. Featured fruits and vegetables include kale, beets, carrots, ginger, orange, apple, pineapple, chia seeds, and wheatgrass.
You can check to see if your local Jamba Juice is participating on their website here.