Surströmming is a century-old Swedish tradition of fermented Baltic herring, produced in the High Coast region. The tradition of hosting surströmming parties (surströmmingsskivor) is particularly strong in northern Sweden, where entire communities come together to open cans of the notoriously smelly fish, often accompanied by songs and schnapps. Alfta, in central Sweden, became famous for hosting a large annual surströmming p...