The present invention relates to potato products obtainable from potatoes treated by a process comprising the steps of applying an electric field to the potatoes, using such a field strength that pores are created in the cell membranes of the potatoes, resulting in an enhanced rate of mass transfer of intracellular and/or extracellular substances from said potatoes, which can be removed from the potatoes by washing in a liquid at low temperatures. The invention also relates to devices for the electroporation treatment.