DIN white are highest quality wood pellets. Even DIN white = Din plus ( PREMIUM ) , the ONLY difference is the collor from time to time. Why we seperate DIN white (PREMIUM) from DIN Premium ? Because our customers seperate them even there is no such clasiffication in the scientific research. Everyone should understand that. Within last 2 + years more and more clients understand that and there will be time when DIN white plus will be hard to get as it is with DIN white ( PREMIUM ). As market for pellets grows exponential the same is with demand. DIN plus is for domestic use. And don`t forget – It is NOT a collor, it is how much heat You get.. !