I have not tried lol grandma's were a bit grainy after a long freeze, that would explain why. I dehydrate them and store in the cupboard when we have excess or trade them with others who have excess of different veggies.
I wonder if twice baked potatoes would freeze? I always wonder if I freeze mashed potatoes if they will kind of separate and get watery. Have you frozen mashed before?
I just grabbed and planted these.......not really a well thought out plan on this one, hahaha!!! As you say, we will see! My poor hubby if they don't do well. He SO wants a big pile of potatoes this year.