The Keef Classic Blue Razz is formulated with natural raspberry and blueberry flavors exquisitely blended to create the perfect berry soda. It contains a total of 100mg THC and is only available in Medical markets. First introduced in January 2010, the Keef Classic soda line (previously known as Keef Cola) is the most awarded cannabis beverage in the world. They’re everything you love about the sweet and timeless soda flavor with a burst of THC for added effect.