An interesting option I started to wonder about and alternative to a root cellar in winter is that if I stored canned goods, water, juice and such in a large cooler, would that prevent the stuff from freezing if the temp got down to 0 or say -10 degrees ?
Also, if I left the stuff in there all winter would it prevent it from freezing ? If the cooler was partially buried in the ground, or buried in snow, perhaps that would provide additional insulation. I wonder on this as the temp got down to 5 degrees at my BOL, but tea in the cooler did not freeze, that was only after a couple of days. I recall that an igloo made of ice or a snow shelter, keeps the temp at or above 32 degrees ..
I just unpacked my cooler after getting back from Maine and the tea is now partially frozen after transporting it in the back of my truck. I do wonder though if there is some kind of beverage or canned good that won't freeze until 31 or 30 degrees, maybe that would be a safer bet because maybe the cooler keeps the temp close to 32 ?
I guess I might have to experiment or something, maybe if I added just a tad of alcohol to the water, even just 1% RV anti freeze or something it would be enough. Some of the water I may only need for washing dishes anyway or RV antifreeze is supposedly safe to drink, though I would not try to drink alot of it by any means ..
An idea for storing canned goods might be to submerge the cans in a solution of water with RV antifreeze and then put that inside of a large cooler. As long as the cans don't corrode (not sure on that). It seems that might keep them from freezing and possibly allow storage of them outdoors in the winter ..