It will depend upon the intensity of the light and duration of exposure. It also depends upon what you consider green- any slight hue or green green. Regardless, in our studies we saw green develop between 2 and 4 days, but this was under 23 hour light exposure.
Is it OK to eat potatoes that have turned green?
Green potatoes should be taken seriously. Although the green color itself is not harmful, it may indicate the presence of a toxin called solanine. Peeling green potatoes can help reduce solanine levels, but once a potato has turned green, it's best to throw it away.
How do you keep potatoes from turning green?
You can prevent potatoes from turning green by storing them in a cool, dark area with good air circulation and high humidity. The ideal environment for storing potato tubers for long periods is 45 to 50 F with 90 to 95 percent relative humidity and darkness.
Why do potatoes turn green so fast?
Potatoes will turn green when growing too close to the soil surface, as well as when stored under even low light conditions — thus, the recommendations to mound potato plants in the garden and store harvested potatoes in complete darkness. The next time you see a green potato, be thankful for that color change.
Does too much light make potatoes turn green?
Potato tubers turn green when exposed to light. Whether store-bought or homegrown, potatoes will turn green when they are exposed to light. Most folks know that they shouldn't eat potatoes that have turned green, or should at least cut away the affected portion.
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