When I have much potatoes, they usually get rot so my mother in law told me to wrap them with newspaper. I wanted to complain but because I'm a good daughter in law, even when it's against my will, I have to follow her. Or else she would call me every now and then and ask If I already did what she said. To avoid those kind of phone calls from her, I did what she said and right! The potatoes stayed fresh in the refrigerator. It's sometimes good to follow what elders say.
Here's what I did. I wrapped each potatoes with newspaper and put in the plastic bag before I put in the refrigerator. You try and see the result.