Freezing temps with winter thaws is a real challenge. At the sled dog yards at Denali National Park in Alaska, they simply keep covering waste with sawdust and wait for spring to
compost. But most of us don't have that long deep freeze.
You could switch from summer composting to either bokashi or vermicompost in containers in your basement, as long as temps don't drop much below 40 degrees. Both processes shouldn't produce odors if done properly, but there's the rub. It takes research, monitoring, experimenting to do either one right.
I'm thinking that for starters bokashi would be easier to handle. But you'll need to get the residuals into the ground during the thaws when you can bury it. Otherwise, you'll need lots of collection buckets.
But those vertical stacked worm bins with multiple trays are pretty slick and don't take up much space. The vermicompost and leacheate collect at the bottom for harvesting. Vermiculture residuals have less volume than bokashi and you can store them more easily. Your biggest job will be providing an environment that will keep the worms healthy. Check out how a bit of bokashi can help with that.
