Do you leave them to dry on the plant, then harvest? If so, at what point do you harvest? Or do you pick them when green, and then dry them? If the latter, is there any trick or technique to drying and storing to prevent rot?
I also have a vague memory of people using five gallon buckets (food grade) that seal well and throwing some dry ice in before sealing it. The idea is that the dry ice releases a lot of CO2, which is heavy and then displaces the air in the bucket between all the grains. So if a critter got in there, it wouldn't survive.
i have only done peas for seed but did just as others have. left them on the plant to dry. I would be hesitant to do the oven thing if I was planning on using them for seed, i would probably kill the seed.
"Let the pods mature on the plant, and dry down before you pick them. they should get to corn husk dry stage before you shell them. Shell them out, and let them air dry farther for a week or so. If you are afraid there may be weevils or the like on the seeds, either mix a little diatomaceous earth with the seeds, or put them in the fridge for a couple of weeks, then in the freezer for a few days, then back in the fridge for a week or so, then into room temperature air. The sojourns in the fridge are for the benefit of the seeds respiration, before and after freezing. If you have the time and patience, do the process twice, as the return to room temperature for a week or so may/should trigger the hatching process in any surviving eggs."