Maybe it depends on the length of storage, but I've kept potatoes (both regular and sweet) in the refrigerator without any ill effects. I recently learned whatever container you store the potatoes in should be left uncovered. I used a covered container last month and one of the sweet potatoes was beginning to develop rot due to moisture from the closed container or maybe it could have been the potatoes off-gassing. In any case, I no longer cover the container I use to store potatoes in when storing in the refrigerator.
Maybe it depends on the length of storage, but I've kept potatoes (both regular and sweet) in the refrigerator without any ill effects. I recently learned whatever container you store the potatoes in should be left uncovered. I used a covered container last month and one of the sweet potatoes was beginning to develop rot due to moisture from the closed container or maybe it could have been the potatoes off-gassing. In any case, I no longer cover the container I use to store potatoes in when storing in the refrigerator.