my mother and grandmother both can. but they also have their own orchard, with pears, plums, apples, and peaches. plus they have strawberries, carrots, green beans, corn, etc.... so they do a lot of canning, and i reap the benefits every time i go home to visit. lets just say its a good thing i love PB & J sandwiches.
I know how to do it all, just need to jump into it again at my own home.
oh yeah, they also don't use any insecticide/weed killer, and they have plenty of sources for fertilizer (compost, horses, and cows)
kinda un-related, but they also raise their own beef. not a lot, but it doesn't take much. they just had 2 cows slaughtered, and had it all ground into hamburger this time (sometimes they do a mixture of steaks/burger). the result? 1100 pounds of beef shrink-wrapped into 1 pound packs.
i only hope i can someday have a fraction of the self-sufficient lifestyle they have.