You try lugging a whole deer's worth of venison outside to the snow every time your power goes out
There are bear proof barrels, which are frequently used for camping (and I'm not sure if I'd bet on them against a bear, but they keep racoons out), or if you don't have them you can tie your food up a tree and that does a pretty good job too.
Snowstorms are rare enough, even in Northern Canada that you can usually wait it out. If it lasts for days then that's a different story, but I only recall one multi-day blizzard over the five years that I was there.
first summer, SUMMER, second summer, and sprautumn.
https://www.wired.com/2016/04/store-wine-underground-inside-...