Great question — answering as the UphillTech team:
You could consider a smell proof bear bag . Although bears are not a danger near Tromsø, the bag is generally useful as a stuff sack for food. My friend keeps all his food in such a bag, even when he's not hiking in bear territory. It helps to keep other animals out as well¹. You probably need only one because not all your food is smelly. I can't personally attest the linked product (which was just the first google hit for "smell proof bear bag") and I don't know if they ship outside the USA, but I have used the Garcia container (which I bought when I lived in Canada) which should work (it has a smell-proof liner inside too), but is quite an overkill for hiking in Scandinavia. ¹ The only...
Full answer by gerrit: https://outdoors.stackexchange.com/a/22896 (CC BY-SA 4.0).
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