cantata wrote:
I remember that when I was a child, my friend's grandfather had the whole back-garden laid out with growing fruit and vegetables. Every autumn he harvested those items that could be stored and put them on trays in their old wooden shed; and they would have apples, potatoes and onions all winter through. In knee-deep snow, we'd be allowed to go into the shed and pick ourselves an apple off one of the trays/pallets.
Now, I don't think that's "the rosy glow of hindsight". I remember that pretty clearly (and so does my friend!); but, today, I can't find a way to store apples or potatoes (bought from the supermarket, I'm sorry to admit) without them going off in a very few days. How come?
First off, the apples, what sort of apples were those your friends grandpa was growing? There's so many different types of apples, my mother has bunch of appletrees, around dozen or so and each one is different variety. There's two at least which we call winter apples, they ripen the last but they wont go bad, those things can last for months upon months if they're stored in a cool place safe from sunlight.... Most market varieties seem to be the quickly ripening types which are of course "better business" as they grow faster. There's a huge difference there, some varieties rot in very soon after picking and others last for ages. Its all about the variety, also home grown apples don't usually have any kind of chemical kung fu done on them which might ruin them.
And then potatoes, there's a same thing about the variety, there's many different types... But do you remember HOW the potatoes were then your friends grandpa stored them? I bet they were still covered in dirt, weren't they? Washed potatoes never last that long as unwashed ones. I'm not entirely sure how it works but it seems that as long as there's dirt on the potaotes, "they think" they're still in the ground and do not go bad.

Also the right way to store them is in cool place, away from sunlight. A cellar below ground level is the best place, if you think of it, the potatoes are pretty much as they were, covered in dirt, below ground in cold and dark. That's how they last.
The same pretty much applied for onions, carrots and so on.... Herbs will last for ages when dried and lettuce is one of the few things that goes bad no matter what. I would say that nearly everything edible that grows below ground can be stored for a very long time when you do it properly. Supermarket food is usually completely different, at least it was so in Ireland where most of the typical food was "factory made" market stuff, grown too quickly with questionable methods to make lot of money.... Here's one more thing which is nice about Finland, locally grown food is very easy to find. We're not that far away from the rural agricultural society so some of its good sides are still here. Same with gardening supplies, easy to find and relatively cheap as gardening is very popular. Makes life nice for any survivalist.