What is the green coloring on the potato skin?
A. The green on the skin of a potato is the build-up of a chemical called Solanine. It is a natural reaction to the potato being exposed to too much light. Solanine produces a bitter taste and if eaten in large quantity can cause illness, this is unlikely, however, because of the bitter taste. If there is slight greening, cut away the green portions of the potato skin before cooking and eating.
