In Nunavut, it's closer to $38 (but sometimes as low as $26). Food prices in Northern Canada are basically more ridiculous than Norway.
However, Walmart Canada has 1L "value brand" orange juice for as low as $1. So don't assume the price is the same everywhere. And also consider that OJ prices fluctuate daily on the commodities exchange (as much as 19% just in the past 3 months) and there are many tiers of OJ, from concentrate at as low as $1 per liter, to as much as $10 for super-premium brands.
Sounds about right. I paid $4.50 for a warm (12 oz) can of Shasta root beer in Koliganek, AK.
Keep in mind that these prices are for very small, very remote towns where everything is flown in (or driven over the ice in winter), not downtown Montreal or Anchorage.
Certain foodstuffs are also more expensive on Caribbean Islands (not as high as remote Alaskan towns, but more expensive than the continental US). Brand names are also way more expensive there (for the most part) than off brands. Lots of Ultra Pasteurized products for sale as well.
Root beer (well, Shasta at least) is a sugary soft-drink (non-alcoholic). I think I paid about S$12 for a pint of actual beer at some pizza place in Clarke Quay. Don't think they tax the sugary stuff as much (if at all?), but they'll certainly shame you out of them (hello TAF).
However, Walmart Canada has 1L "value brand" orange juice for as low as $1. So don't assume the price is the same everywhere. And also consider that OJ prices fluctuate daily on the commodities exchange (as much as 19% just in the past 3 months) and there are many tiers of OJ, from concentrate at as low as $1 per liter, to as much as $10 for super-premium brands.