You can drink acai berry juice anytime you wish to buy the early morning after a workout is the best time to enjoy such an energizing drink. You can also mix it with other drinks, fruits and vegetables if you are making fresh juice at home. They can also be a part of your after-workout smoothies and shakes. For most tasteful ventures tries mixing acai berry juice with other berry juices like blueberry or blackberry juice. It also tastes great and refreshing if mixed with mango or pomegranate juice and used in the early morning.