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Subject: Rice flour, Taiwanese cuisine, List of rice dishes, Artemisia princeps, I Survived a Japanese Game Show (season 1)
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Rice cake Kirimochi or Kakumochi
Rice cake Marumochi
(video) Fresh mochi being pounded
Making mochi with modern equipment
Pounding mochi in an usu
Beating glutinous rice with a mallet

Mochi (餅, もち) is Japanese rice cake made of mochigome, a short-grain japonica glutinous rice. The rice is pounded into paste and molded into the desired shape. In Japan it is traditionally made in a ceremony called mochitsuki.[1] While also eaten year-round, mochi is a traditional food for the Japanese New Year and is commonly sold and eaten during that time. Mochi is called môa-chî (麻糬 or 𫃎糬) in Taiwan.

Mochi is a multicomponent food consisting of polysaccharides, lipids, protein and water. Mochi has a heterogeneous structure of amylopectin gel, starch grains and air bubbles.[2] This rice is characterized by its lack of amylose in starch and is derived from short or medium japonica rices. The protein concentration of the rice is a bit higher than normal short-grain rice and the two also differ in amylose content. In mochi rice, the amylose content is negligible which results in the soft gel consistency of mochi.[3]


Traditionally, mochi was made from whole rice, in a labor-intensive process. The traditional mochi-pounding ceremony in Japan is Mochitsuki:

  1. Polished glutinous rice is soaked overnight and cooked.
  2. The cooked rice is pounded with wooden mallets (kine) in a traditional mortar (usu). Two people will alternate the work, one pounding and the other turning and wetting the mochi. They must keep a steady rhythm or they may accidentally injure one another with the heavy kine.
  3. The sticky mass is then formed into various shapes (usually a sphere or cube).

Mochi can also be prepared from a flour of sweet rice (mochiko). The flour is mixed with water to a sticky opaque white mass that is cooked on the stovetop or in the microwave[4] until it becomes elastic and slightly transparent.[5]

Popular uses


Many types of traditional wagashi and mochigashi (Japanese traditional sweets) are made with mochi. For example, daifuku is a soft round mochi stuffed with sweet filling, such as sweetened red bean paste (an) or white bean paste (shiro an). Ichigo daifuku is a version containing a whole strawberry inside.

Kusa mochi is a green variety of mochi flavored with yomogi (mugwort). When daifuku is made with kusa mochi, it is called yomogi daifuku.

Ice cream

Small balls of ice cream are wrapped inside a mochi covering to make mochi ice cream. In Japan, this is manufactured by the conglomerate Lotte under the name Yukimi Daifuku, "snow-viewing daifuku".


  • Oshiruko or ozenzai is a sweet azuki bean soup with pieces of mochi. In winter, Japanese people often eat it to warm themselves.
  • Chikara udon (meaning "power udon") is a dish consisting of udon noodles in soup topped with toasted mochi.
  • Zōni. See New Year specialties below.

New Year specialties

  • Kagami mochi is a New Year decoration, which is traditionally broken and eaten in a ritual called Kagami biraki (mirror opening).
  • Zōni is a soup containing rice cakes. Zoni is also eaten on New Year's Day. In addition to mochi, zoni contains vegetables like taro, carrot, honeywort and red and white colored kamaboko.
  • Kinako mochi is a mochi dish that is traditionally made on New Year's Day for luck. This style of mochi preparation includes roasting the mochi over a fire or stove, then dipping it into water, finally coating with sugar and kinako (soy flour).

Other variations

  • Dango is a Japanese dumpling made from mochiko (rice flour).
  • Warabimochi is not true mochi, but a jelly-like confection made from bracken starch and covered or dipped in kinako (soybean flour) with sugar. It is popular in the summertime, and often sold from trucks, not unlike ice cream trucks in Western countries.
  • More recently, "Moffles" (a waffle made from a toasted mochi) has been introduced.[6] It is made in a specialized machine as well as a traditional waffle iron.

Outside Japan

Kue moci in Indonesia, glutinous rice filled with peanut paste and covered with sesame seeds

In Indonesia the mochi sweet dumpling cake is known as kue moci, usually filled with sweet bean paste and covered with sesame seeds.


Mochi's characteristic chewiness is due to the polysaccharides in it. The viscosity and elasticity that account for this chewiness are affected by many factors such as the starch concentration, configuration of the swollen starch granules, the conditions of heating (temperature, heating period and rate of heating) as well as the junction zones that interconnect each polymer chain. The more junction zones the substance has, the stronger the cohesiveness of the gel, thereby forming a more solid like material. The perfect mochi will have the perfect balance between viscosity and elasticity so that it is not inextensible and fragile but rather extensible yet firm.[7]

Many tests have been conducted on the factors that affect the viscoelastic properties of mochi. As puncture tests show, samples with a higher solid (polysaccharide) content show an increased resistance and thereby a stronger and tougher gel. This increased resistance to the puncture test indicate that an increase in solute concentration leads to a more rigid and harder gel with an increased cohesiveness, internal binding, elasticity and springiness which means a decrease in material flow or an increase in viscosity. These results can also be brought about by an increase in heating time. Sensory assessments of the hardness, stickiness and elasticity of mochi and their relationship with solute concentration and heating time were also performed. Similar to the puncture test results, sensory tests also determine that hardness and elasticity increase with increasing time of heating and solid concentration. However, stickiness of the samples increase with increasing time of heating and solid concentration until a certain level, above which the reverse trend is observed. It is important to understand these relationships because too hard or elastic a mochi is undesirable, as is one that is too sticky and will stick to walls of the container.[7]

Health hazards

Suffocation deaths are caused by mochi every year in Japan, especially among elderly people.[8] According to the Tokyo Fire Department which responds to choking cases, mochi sends more than 100 people to the hospital every year in Tokyo alone. Between 2006 and 2009, 18 people died from choking on mochi in the Japanese capital, according to city's fire department. In 2011, Japanese media reported eight mochi-related deaths in Tokyo in January.

Every year, Japanese authorities warn people to cut mochi into small pieces before eating it. The Tokyo Fire Department even has a website offering tips on how to help someone choking on mochi.[8]

See also

Similar foods in other countries:


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  5. ^ Itoh, Makiko, "Rice takes prized, symbolic yearend form", Japan Times, 30 December 2011, p. 14.
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  7. ^ a b
  8. ^ a b
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