how long can you leave potato juice on face for
1 Leave it to dry for 30 minutes, or even over-night. 2  Make a fine juice using raw potato (without skin). 3  Keep the juice in the fridge for 30 minutes. 4  Dip a wash cloth in this juice and scrub your face clean with it. Rub the raw potato slices on acne, pimples, burns or warts, so that the juice of the potato is spread across the affected area. 2  Leave it to dry for 30 minutes, or even over-night. 3  Make a fine juice using raw potato (without skin).