A fermentation process of at least six months gives the fish its characteristic strong smell and somewhat acidic taste. According to a Japanese study, a newly opened can of surströmming has one of the most putrid food smells in the world, even stronger than similarly fermented fish dishes such as the Korean hongeohoe or Japanese kusaya.
This sounds disgusting! Have you ever tried it? I'm just filled with morbid curiosity right now - Part of me wants to order a can just to see if it's as bad as the internet makes it sound
Kebabpizza actually sounds delicious, even if I'm laughing at the name a little bit :)