That said, lingonberries are a cultural symbol for many Swedes in the diaspora. Since they're one of the few arctic foods that travel, we love to use them as an accompaniment to kottbullar, as a wonderful soda (for some reason, carbonated water is a real luxury Up North), and as an ingredient in the popular (Back Home) drink "Wolf's Paw" (there: grain alcohol, lingonberry juice, here: Absolut, lingonberry extract).
I daresay that you could probably ferment a seal with it, but I don't care to experiment...
IKEA carries the concentrate, if someone wishes to try it.