I’m talkin about ‘Surströmming’, a Swedish fish specialty designed outside of fermented herring. The delicacy is noted for its really penetrating odor, that is The explanation For most YouTube videos. Somewhat shockingly, the ban on surströmming by several commercial Airways has little, if anything, to do with its intense odor. https://www.youtube.com/watch?v=OS365DWxnKQ