Energy Original Root Beer Freeze (20 servings)Perk Energy Original Root Beer Freeze is a portable serving of summer vibes in a glass! Experience the flavor of root beer and ice cream in a creamy, smooth drink that is as refreshing as it is delicious. It captures the feeling of picnics and pool parties, even if you drink it in an office. Directions Real Talk. Mornings can be rough. Sometimes the bed just calls to you. We get it. Perk tastes so good you'll look forward to getting up in the morning.