Fermented herring, often sold in cans, "which when opened release a strong smell. Because of the smell, the dish is often eaten outdoors. However, opening the can under water somewhat lessens the smell, as well as prevents the person opening it from being soaked in brine, as the fermentation often builds up a considerable pressure inside the can." So says Wikipedia.
Fermented herring, often sold in cans, "which when opened release a strong smell. Because of the smell, the dish is often eaten outdoors. However, opening the can under water somewhat lessens the smell, as well as prevents the person opening it from being soaked in brine, as the fermentation often builds up a considerable pressure inside the can." So says Wikipedia.