A step too far? Calbee collaborates with Lotte to create chewing gum flavoured chips The Japanese snack giant is certainly not scared of dipping its toe into the realm of bizarre flavours, but its newest flavours are sure to give even the most jaded snack fan a double take. Calbee teamed up with Lotte Corporation to produce flavours that were inspired by the confectionery producer’s top-selling Blueberry Gum and Ume Gum. Ume Gum – on the market since 1976 – brings together the on-trend combo of Japanese plum and shiso (a plant of the mint family), while Lotte’s popular Blueberry Gum – created in 1982 – captures the sweet and sour notes of the berries.