Misu is a kind of Korean traditional drink

Drink

A drink, or beverage, is a liquid which is specifically prepared for human consumption. In addition to fulfilling a basic human need, beverages form part of the culture of human society.-Water:...

 made of grain

GRAIN

GRAIN is a small international non-profit organisation that works to support small farmers and social movements in their struggles for community-controlled and biodiversity-based food systems. Our support takes the form of independent research and analysis, networking at local, regional and...

 powder

Powder (substance)

A powder is a dry,thick bulk solid composed of a large number of very fine particles that may flow freely when shaken or tilted. Powders are a special sub-class of granular materials, although the terms powder and granular are sometimes used to distinguish separate classes of material...

. It is usually served in the hot summer

Summer

Summer is the warmest of the four temperate seasons, between spring and autumn. At the summer solstice, the days are longest and the nights are shortest, with day-length decreasing as the season progresses after the solstice...

 days to quench thirst and also as an instant nutritious drink fulfilling the lost energy because of heat

Heat

In physics and thermodynamics, heat is energy transferred from one body, region, or thermodynamic system to another due to thermal contact or thermal radiation when the systems are at different temperatures. It is often described as one of the fundamental processes of energy transfer between...

.

In an ancient Chinese culinary text, the drink was called qiu or stir-fried powder. In a Joseon Dynasty

Joseon Dynasty

Joseon , was a Korean state founded by Taejo Yi Seong-gye that lasted for approximately five centuries. It was founded in the aftermath of the overthrow of the Goryeo at what is today the city of Kaesong. Early on, Korea was retitled and the capital was relocated to modern-day Seoul...

 recipe book, misu was mentioned as stir-fried barley

Barley

Barley is a major cereal grain, a member of the grass family. It serves as a major animal fodder, as a base malt for beer and certain distilled beverages, and as a component of various health foods...

 (gu). Gu was a delicacy of that time and easy to served as one went to travel.

Misu made of glutinous rice

Glutinous rice

Glutinous rice is a type of short-grained Asian rice that is especially sticky when cooked. It is called glutinous Glutinous rice (Oryza sativa var. glutinosa or Oryza glutinosa; also called sticky rice, sweet rice, waxy rice, botan rice, biroin chal, mochi rice, and pearl rice, and pulut) is a...

 or other ingredients such as barley

Barley

Barley is a major cereal grain, a member of the grass family. It serves as a major animal fodder, as a base malt for beer and certain distilled beverages, and as a component of various health foods...

 or Job's Tears

Job's Tears

Job's Tears , Coixseed, Tear Grass, adlay, or adlai, is a tall grain-bearing tropical plant of the family Poaceae native to Southeast Asia but elsewhere cultivated in gardens as an annual. It has been naturalized in the southern United States and the New World tropics...

 (yulmu). But it is more nutritious if all the ingredients such as barley

Barley

Barley is a major cereal grain, a member of the grass family. It serves as a major animal fodder, as a base malt for beer and certain distilled beverages, and as a component of various health foods...

, glutinous rice

Glutinous rice

Glutinous rice is a type of short-grained Asian rice that is especially sticky when cooked. It is called glutinous Glutinous rice (Oryza sativa var. glutinosa or Oryza glutinosa; also called sticky rice, sweet rice, waxy rice, botan rice, biroin chal, mochi rice, and pearl rice, and pulut) is a...

, black beans and sesame seeds are mixed together. The mixture of grains is pounded and added with water in a bowl and stirred. Sugar

Sugar

Sugar is a class of edible crystalline carbohydrates, mainly sucrose, lactose, and fructose, characterized by a sweet flavor.Sucrose in its refined form primarily comes from sugar cane and sugar beet...

 or condensed milk

Condensed milk

Condensed milk, also known as sweetened condensed milk, is cow's milk from which water has been removed and to which sugar has been added, yielding a very thick, sweet product which when canned can last for years without refrigeration if unopened. The two terms, condensed milk and sweetened...

can be added as sweetener.