Our data demonstrated that the curing not only significantly changed potato flesh colour (Fig. 1A & C and phenolic metabolism before cut, but also dramatically affected phenolic metabolism of fresh cut slices during 12 d storage time at 3 °C (Fig. 5A–F). No caffeic acid or little coffee acid was detected in the slices of potato variety Netherlands 7 either before or after wounding comparing with standard HPLC absorbent pattern and RT (Supplemental Figs. 1 and 3).