How many berries can we use in our Burstin´ Berry Juice Slam? Well there´s cranberry, elderberry, red raspberry, boysenberry, strawberry and blackberry. Oh and they´re usually blended with apple, pear, white grape, plum, currant, peach, cherry and pineapple, too! You´ll find tons of flavor and 17 vitamins and minerals in each slam. What you won´t find is any artificial colors, flavors, gluten or preservatives.