Abstract: The present invention relates to a method for preparing a potato product for finish-frying, a processing line therefor and a potato product for finish-frying. The method according to the invention includes the steps of: —supplying a quantity of potatoes of a potato variety with an underwater weight equal to or lower than 300 g/5 kg; —washing, peeling and cutting the supplied potatoes to form a basic potato product; —blanching the basic potato product to form a blanched potato product; —drying the blanched potato product; —applying a coating to the blanched and dried potato product to form a coated potato product; and —pre-frying the coated potato product to form a pre-fried potato product, wherein the steps provide a potato product, the energetic value of which is lower than 190 kCal/100 g after finish-frying.