Miso

Miso (味噌) is a traditional Japanese food produced by fermenting rice, barley and/or soybeans, with salt and kōji (the most typical miso is made with soy). The result is a typically thick paste used in sauces and spreads, to pickle vegetables or meats, and mixed with dashi soup stock and served as miso soup called Misoshiru (味噌汁) at each meal. High in protein and rich in vitamins and minerals, miso played an important nutritional role in feudal Japan. Miso is still very widely used in Japan, both in traditional and modern cooking, and has been gaining world-wide interest. Miso is typically salty, but its flavour and aroma depend on various factors in the ingredients and fermentation process. Different varieties of miso have been described as salty, sweet, earthy, fruity, and savoury, and there is an extremely wide variety of miso available.

History

During the Edo period miso was also called hishio and kuki.

Until the Muromachi era, miso was made without grinding the soybeans, somewhat like natto. In the Kamakura era, a common meal was made up of a bowl of rice, some dried fish, a serving of miso, and a fresh vegetable. In the Muromachi era, Buddhist monks realized that soybeans could be ground into a paste, spawning new cooking methods where miso was used to flavour other foods.

Flavor

The taste, aroma, texture, and appearance of any specific miso vary by miso type as well as the region and season the miso was made for. The ingredients used, temperature and duration of fermentation, salt content, variety of kōji, and fermenting vessel all contribute. The most common flavour categories of soy miso are:

• Shiromiso, "white miso"
• Akamiso, "red miso"
• Kuromiso, "black miso"
• Hatchomiso

White and red (shiromiso and akamiso) are the basic types of miso available in all of Japan as well as overseas. Different varieties are preferred in particular regions. For example, in the eastern Kanto region that includes Tokyo, the lighter shiromiso is popular, while in the western Kansai region encompassing Osaka, Kyoto, and Kobe, darker brownish hatchomiso is preferred, and akamiso is favoured in the tohoku area.

Using miso

Storage and preparation

Miso typically comes as a paste in a sealed container, and should be refrigerated after opening. It can be eaten raw, and cooking changes its flavour and nutritional value; when used in misoshiru, most cooks do not allow the miso to come to a full boil. Some people, especially those outside of Japan, go so far as to only add miso to preparations after they have cooled, to preserve the biological activity of the kōji. Since miso and soy foods play a large role in the Japanese diet, there are a variety of cooked miso dishes as well.

In food

Miso is a part of many Japanese style meals. It commonly accompanies rice as miso soup (misoshiru - 味噌汁): the rice/miso soup pairing is considered the fundamental unit of Japanese cuisine, and is eaten daily by much of the Japanese population. Miso is used in many other types of soup and souplike dishes, including some kinds of ramen, udon, nabe, and imoni. Generally, such dishes have the title "miso" appended to their name (eg. miso-udon), and have a heavier, earthier flavour and aroma.

Many traditional confections use a sweet, thick miso glaze, such as mochidango. Miso glazed treats are strongly associated with Japanese festivals, although they are available year-round at supermarkets. The consistency of miso glaze ranges from thick and taffy-like to thin and drippy.

Miso is used to make a type of pickle called "misozuke" . These pickles are typically made from cucumber, daikon, or eggplant, and are sweeter and less salty than the standard Japanese salt pickle.

Other foods with miso as an ingredient include:

• dengaku (charcoal-grilled miso covered tofu)
• yakimochi (charcoal-grilled miso covered mochi)
• miso braised vegetables or mushrooms
• marinades: fish or chicken can be marinated in miso and sake overnight to be grilled.
• corn on the cob in Japan is usually coated with shiro miso, wrapped in foil and grilled.
• sauces: sauces like misoyaki (a variant on teriyaki) are common.

Miso nutrition

The nutritional benefits of miso have been widely touted by commercial enterprises and home cooks alike. However, claims that miso is high in vitamin B₁₂ have been contradicted in some studies [1]. Part of the confusion may stem from the fact that some soy products are high in B vitamins (though not necessarily B₁₂), and some, such as soy milk, may be fortified with vitamin B₁₂. Some, especially proponents of healthy eating, suggest that miso can help treat radiation sickness, citing cases in Japan and Russia where people have been fed miso after the Chernobyl nuclear disaster and the atomic bombings of Hiroshima and Nagasaki. Notably, Japanese doctor Shinichiro Akizuki, director of Saint Francis Hospital in Nagasaki during the World War II, theorized that miso helps protect against radiation sickness [2]. Also some experts suggest that miso is a source of Lactobacillus acidophilus [3].

Main types of miso

The raw materials used to produce miso may include any mix of soybeans, barley, rice, buckwheat, millet, rye, wheat, hemp seed, and cycad, among others. Lately, producers in other countries have also begun selling miso made from chick peas, corn, adzuki beans, amaranth, and quinoa. Fermentation time ranges from as little as five days to several years. The wide variety of Japanese miso is difficult to classify, but is commonly done by grain type, color, taste, and backround.

• mugi (麦) - barley
• tsubu (粒) - whole wheat/barley
• aka (赤) - red, medium flavor, most commonly used
• hatchō (八丁) - aged (or smoked), strongest flavor
• shiro (白) - rice, sweet white, fresh
• shinshu - rice, brown colour
• genmai (玄米) - brown rice
• awase (合わせ) - layered, typically in supermarket
• moromi (醪) - chunky, healthy (kōji is unblended)
• nanban (南蛮) - chunky, sweet, for dipping sauce
• inaka (田舎) - farmstyle
• taima (大麻) - hemp seed
• sobamugi (蕎麦) - buckwheat
• hadakamugi (裸麦) - rye
• meri (蘇鉄) - made from cycad pulp, Buddhist temple diet
• gokoku (五穀) - "5 grain": soy, wheat, barley, proso millet, and foxtail millet

Many regions have their own specific variation on the miso standard. For example, the soybeans used in Sendai miso are much more coarsely mashed than in normal soy miso.

Miso made with rice (including shinshu and shiro miso) is called kome miso.

Bibliography

• Farnworth, Edward R. (2003). Handbook of Fermented Functional Foods. CRC. ISBN 0-8493-1372-4.
• Katz, Sandor Ellix (2003). Wild Fermentation: The Flavor, Nutrition, and Craft of Live-Culture Foods. Chelsea Green Publishing Company. ISBN 1-931498-23-7. Retrieved 2006-04-23.

See also

• Doenjang (Korean miso)

External links

• Miso Online from the Miso Health Promotion Committee