... Blue Fine Powder Widely used in instant rice & flour products, jam, fruit-flavoured. ItemEnterprise StandardProduct NameGardenia BlueAppearanceDark ... BacteriaNegativeApplications and Usage InstructionWidely used in instant rice & flour products, jam, fruit-flavoured beverages, beverages of fruit ... Usage ReferenceThe maximun usage limit for instant rice & flour products is 0.5g/kg, for jam and cabdy ...