Although not a perfect test, sight is the best way to tell if your ginger root has gone bad. Some common traits of ginger root going bad are a soft and moist texture. The cut end of the root will eventually become moldy and unsafe to eat. Peeled and cut ginger will darken around the edges as it is going bad.
Also asked, what does ginger look like when it's bad?
Fresh ginger is somewhat firm to touch, so if it turns soft or mushy, it's time to let it go. Same thing if the flesh starts to turn dark yellow or greyish, instead of the usual bright yellow. In short, once you see the flesh, you should know if it's okay or not.
Also, what color should fresh ginger be? Blue Ginger. Why does fresh ginger sometimes have a blue-gray color? After conferring with our science editor, we learned that when ginger is stored for a long period of time in a cold environment, it becomes less acidic, and this causes some of its anthocyanin pigments to change to a blue-gray color.
Also know, what will happen if you eat spoiled Ginger?
Rotten ginger root produces a powerful toxin called safrole. Even small amounts can damage your liver cells.
How long before Ginger goes bad?
about one month