Are peeled potatoes that turn black edible?

When potatoes are peeled, they are exposed to oxygen, which causes the enzymes in the potato to react and produce a chemical called melanin. Melanin is a pigment that gives potatoes their brown or black color. This process is called oxidation, and it is the same process that causes apples to turn brown when they are cut open.

While oxidized potatoes are not harmful to eat, they can be unappetizing. The texture of the potato can also become soft and mushy. If you do not plan to eat your peeled potatoes immediately, you can store them in water to prevent them from turning black.