DIN PREMIUM pellets are white pellets. Why we seperate DIN PREMIUM from DIN white ? Because our customers seperate them even there is no such clasiffication in the scientific research. White pellet (PREMIUM) demand is really huge, however, there is not available such a lot white (PREMIUM) pellets in the market. Even DIN white = DIN PREMIUM , the ONLY difference is the collor ! Everyone should understand that. Within last 2 + years more and more clients understand that and there will be time when DIN white will be hard to get as it is with DIN PREMIUM . As market for pellets grows exponential the same is with demand. That why DIN PREMIUM are not so easy to get for good price ! DIN white is for domestic use. And don`t forget – It is NOT a collor, it is how much heat You get.. !