That sprouted potato sack seems scary but is actually harmless
It is common knowledge that some foods perish faster than others. Potatoes are great because you can cook them in all sorts of ways, and they stay edible for a pretty long time. This sack is the exception because judging by the picture, those tubers are in no state to be consumed.
We wonder how long have those potatoes been there for them to sprout so dramatically. Perhaps they got wet and the humidity accelerated the process. It is a shame those veggies are completely useless now since they are such a versatile and delicious ingredient.