A blended drink from a Tukkav tradition of spacefaring, graf originated as a way to infuse long-lasting lapteth beer with vitamins and nutrients without having to supply and store vast quantities of fresh food during the early days of combustion-driven spaceflight. Though many brands of graf lean into the grizzled and storied history of the beverage, it tends to be more popular with younger people who prefer the sweeter fruity characteristics of the fruit and spice additives. Graf is particularly popular on holidays, such as the Ouran and Winterflame.