Black potatos

[Kos]

Opened my sack of Marfona potatoes yesterday and although looking ok on the outside, when I peeled them, the usually pale yellow flesh inside in virtually all of them had partially turned black. I thought it could be frost damage but they haven't actually been directly exposed to any frost.

Any ideas?

[Im a BusyBee]

sounds like frost to me

[welshlibranr]

Yes! definately the frost has got to them! maybe it happened before you bought them, it takes a while for them to show the damage, but it must be frost damage!