The September 9 freeze mostly killed my potato plants so I'm harvesting. I'm digging by hand and keeping everything bigger than a nickel. Here's what I've got so far. That's 376 pounds. Took me about two days and it's a little hard on the spine. It will be a job sorting them out. Supposedly you can root-cellar only whole perfect ones, any holes or cuts and they will rot. So I will have to cook some right away. You can't freeze raw ones either but I believe you can if they are partially cooked (as evidenced by the Ore-Ida section of your grocer's freezer.)
Here is the productivity data row by row. I've dug 4 of the 5 rows in the west patch, average productivity 1.3 pounds per linear foot. (Row 5 starts with Kennebecs (I don't remember if it's all Kennebecs (I think I alternated white and red (but I digress.)))) If the trend were to hold up in the east patch I would project 700 pounds total which would be close to my 750 pound goal. Remember that was 1000 calories a day for 200 days. But the east patch was more heavily munched by deer and bugs, so we'll see.
People keep telling about oh/yah you can go to the big potato farm in Park Rapids and they'll let you glean potatoes for free after the picker goes through. Sure and I could dumpster-dive with the freegans but how resilient and sustainable is that?