My mom grew up on a farm and she told me potatoes should be stored alone in an open, non-plastic bag, kept in a dark, cool place. Same with onions, except for fresh ones. Those go in the fridge.
I refrigerated potatoes (russets, Yukon Golds) a couple of times and didn’t like the cooked results. My mom had said my fridge was so cold it affected the starches/sugars, and upped the sweetness in my potatoes. YMMV on that particular flavor. I love the result when it comes to corn on the cob but not in a baked potato.
I’ve noticed grocery stores are keeping most potatoes colder and colder – I look for the spuds they keep out of the chilled areas. It may be that the smaller, fresher potatoes (little red boilers, fingerlings) need the refrigeration, though.
I’m still trying to find an answer to this on the internet. In the meantime, I’ve been storing my potatoes in a lower kitchen cupboard, but I haven’t noticed if they’ve been lasting any longer.
Everything I’ve read says not to store onions and potatoes together. But that’s where the consensus ends. There is no agreement on why. Some articles say it’s because onions emit ethylene gas and potatoes are sensitive to ethylene gas. Other articles say potatoes emit ethylene gas and onions are sensitive to it. Still other articles say potatoes both emit ethylene gas and are sensitive to it. Other articles say potatoes should ideally be stored in high humidity, while at the same time saying a dry, well-ventilated place. It’s quite funny reading all about this on the internet.
I guess the takeaway is that potatoes and onions shouldn’t share the same airspace in a confined area. ie. same drawer. But what about say, the same tall pantry cabinet, just on a different shelf?
My next door neighbor has a son or grandson with a PHD that studies potatoes at New Mexico state, I think, and the only thing they say when they generously share the spuds with us, is keeping them in the dark or they’ll sprout. Damn those potatoes are good!
Not so much curing as drying.
Also important for home grown onions.
They get harvested when the foliage starts dying. Then put out to dry and every so often you check and pull of the dead foliage. And turn them around.
I’ll be harvesting in about a weeks time and can post some pictures (just small scale, enough for me for a year)