Its because they were exposed to light, its not good to eat them now. The exposure to light caused increased production of a colorless alkaloid called solanine. The solanine can cause illness and in some cases death. I think that bag of potatos has a date with the trash can...
Potatoes turn green when left in the sun (like any other plant)
however, if it is too green it is dangerous to eat. Potatoes are part of the nightshade family (along with eggplants and tomatoes. Which is why tomatoes were originally thought to be poisonous. but I digress)
"Chlorophyll itself is not toxic; however, another response of the potato tuber to light exposure is increased production of a colorless alkaloid called solanine. The amount of solanine increases with the length of exposure and the intensity of light."
Also, potatoes should not be stored in your fridge. Potates should be stored in a dark cool cupboard. Hope that helps :)Why are my potatoes green?
Hi! See the following.
http://news.curiouscook.com/2006/08/gree鈥?/a>
No, just starting to get ready for spring sprouting. You should store potatoes in a cool dry place - not in the fridge which is where you went wrong. They are still edible and can be used as normal.
I think the potatoes On the blink, or when you buy in a period of rapid germination
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