Can you remind me what I need to do when harvesting and recording the crop?

You’ll need to leave the plants in the ground after a killing frost for a week or so while the tubers finish up (unless the weather becomes bitter) and then harvest each one, weigh the crop and record it. The plan is that members will return seeds and some tubers but the rest can be kept for taste testing, eating and planting next year. If there is little frost, as in 2015 then lift the plants at the end of the year.