Sauerkraut (; German: [ˈzaʊɐˌkʁaʊt] (listen), lit. "sour cabbage") is finely cut raw cabbage that has been fermented by various lactic acid bacteria. It has a long shelf life and a distinctive sour flavour, both of which result from the lactic acid formed when the bacteria ferment the sugars in the cabbage leaves. It is one of the best known national dishes in Germany. == Overview and history == Fermented foods have a long history in many cultures, with sauerkraut being one of the most well-known instances of traditional fermented moist cabbage side dishes. The Roman writers Cato (in his De Agri...

Nattō (納豆) is a traditional Japanese food made from soybeans that have been fermented with Bacillus subtilis var. natto. It is often served as a breakfast food. It is served with karashi mustard, soy or tare sauce, and sometimes Japanese bunching onion. Nattō is often considered an acquired taste because of its powerful smell, strong flavor, and sticky, slimy texture. Within Japan, nattō is most popular in the eastern regions, including Kantō, Tōhoku, and Hokkaido, and a 2009 survey revealed that 70.2% of Japanese people find the taste pleasant, and others who may not find the taste of the food...

Surströmming (pronounced [ˈsʉ̂ːˌʂʈrœmːɪŋ]; Swedish for ''sour herring'') is a lightly-salted fermented Baltic Sea herring traditional to Swedish cuisine since at least the 16th century. The Baltic herring, known as strömming in Swedish, is smaller than the Atlantic herring, found in the North Sea. Traditionally, the definition of strömming is "herring fished in the brackish waters of the Baltic north of the Kalmar Strait". The herring used for surströmming are caught just prior to spawning in April and May. During the production of surströmming, just enough salt is used to prevent the raw herring...