How long does sushi stay fresh in the refrigerator?


Sushi is a highly perishable product so it should be eaten within 24 hours. Make sure it is refrigerated during that time.

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Food preservation

Food preservation usually involves preventing the growth of bacteria, fungi (such as yeasts), and other micro-organisms (although some methods work by introducing benign bacteria or fungi to the food), as well as retarding the oxidation of fats that cause rancidity. Food preservation can also include processes that inhibit visual deterioration, such as the enzymatic browning reaction in apples after they are cut, which can occur during food preparation.

Many processes designed to preserve food will involve a number of food preservation methods. Preserving fruit by turning it into jam, for example, involves boiling (to reduce the fruit’s moisture content and to kill bacteria, yeasts, etc.), sugaring (to prevent their re-growth) and sealing within an airtight jar (to prevent recontamination). There are many traditional methods of preserving food that limit the energy inputs and reduce carbon footprint.

Food and drink

Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism and assimilated by the organism's cells in an effort to produce energy, maintain life, or stimulate growth.

Historically, people secured food through two methods: hunting and gathering, and agriculture. Today, most of the food energy consumed by the world population is supplied by the food industry.

Japanese cuisine

Japanese cuisine is the food—ingredients, preparation and way of eating—of Japan. The traditional food of Japan is based on rice with miso soup and other dishes, each in its own utensil, with an emphasis on seasonal ingredients. The side dishes often consist of fish, pickled vegetables, and vegetables cooked in broth. Fish is common in the traditional cuisine. It is often grilled, but it may also be served raw as sashimi or in sushi. Seafood and vegetables are also deep-fried in a light batter as tempura.

Apart from rice, staples include noodles, such as soba and udon. Japan has many simmered dishes such as fish products in broth called oden, or beef in sukiyaki and nikujaga. Foreign food, in particular Chinese food in the form of noodles in soup called ramen and fried dumplings, gyoza, and western food such as curry and hamburger steaks are commonly found in Japan. Historically, the Japanese shunned meat, but with the modernization of Japan in the 1860s, meat-based dishes such as tonkatsu became common.

Food storage

Food storage is both a traditional domestic skill and is important industrially. Food is stored by almost every human society and by many animals. Storing of food has several main purposes:

Sushi Refrigerator
Mechanical engineering

Mechanical engineering is a discipline of engineering that applies the principles of engineering, physics and materials science for analysis, design, manufacturing, and maintenance of mechanical systems. It is the branch of engineering that involves the production and usage of heat and mechanical power for the design, production, and operation of machines and tools. It is one of the oldest and broadest engineering disciplines.

The engineering field requires an understanding of core concepts including mechanics, kinematics, thermodynamics, materials science, structural analysis, and electricity. Mechanical engineers use these core principles along with tools like computer-aided engineering, and product lifecycle management to design and analyze manufacturing plants, industrial equipment and machinery, heating and cooling systems, transport systems, aircraft, watercraft, robotics, medical devices, weapons, and others.


Conveyor belt sushi (回転寿司 kaiten-zushi?) (also called sushi-go-round (くるくる寿司 kuru kuru sushi?)) is the popular English translation for Japanese fast-food sushi. In Australia, it is also known as sushi train (as the sushi goes around a track on a train, rather than a conveyor belt). In South Korea, conveyor belt sushi has become popular and is known as 회전초밥 (revolving sushi).

Kaiten-zushi is a sushi restaurant where the plates with the sushi are placed on a rotating conveyor belt that winds through the restaurant and moves past every table and counter seat. Customers may place special orders, but most simply pick their selections from a steady stream of fresh sushi moving along the conveyor belt. The final bill is based on the number and type of plates of the consumed sushi. Some restaurants use a fancier presentation such as miniature wooden "sushi boats" traveling small canals or miniature locomotive cars.

Hospitality is the relationship between the guest and the host, or the act or practice of being hospitable. This includes the reception and entertainment of guests, visitors, or strangers.

The word hospitality derives from the Latin hospes, meaning "host", "guest", or "stranger". Hospes is formed from hostis, which means "stranger" or "enemy" (the latter being where terms like "hostile" derive).

Science of drugs including their origin, composition, pharmacokinetics,
pharmacodynamics, therapeutic use, and toxicology.

Pharmacology (from Greek φάρμακον, pharmakon, "poison" in classic Greek; "drug" in modern Greek; and -λογία, -logia "study of", "knowledge of") is the branch of medicine and biology concerned with the study of drug action, where a drug can be broadly defined as any man-made, natural, or endogenous (within the body) molecule which exerts a biochemical and/or physiological effect on the cell, tissue, organ, or organism. More specifically, it is the study of the interactions that occur between a living organism and chemicals that affect normal or abnormal biochemical function. If substances have medicinal properties, they are considered pharmaceuticals.

perishable product

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