Updated 04-May-2020.
Mondo shtuff from around the internet, all about RICE COOKER!
My botty best at summarizing from Wikipedia: complex rice cookers may have many more sensors and other components, and may be multipurpose . it now applies mostly to automated cookers. electric rice cookers were developed in japan, where they are known as suihanki () the bowl is filled with rice and water and heated at full power . some cookers switch to low-power “warming” electric rice cookers automate the process by mechanically or electronically controlling heat and timing . pressure-cooker models are not influenced by atmospheric pressure . special features distinguish high-end models from lower-cost, simpler models electric rice cooker does not speed up the cooking process . once the rice cooker is set to cook, the rice will be cooked with no further attention . risotto, pilaf, paella, and stuffed some rice cookers can be used as automated couscoussiers, cooking couscous and a stew simultaneously . rice dishes, including risotto, paella, and rice-stuffed vegetables, cannot some types of rice, e.g., Japanese rice or Calrose rice, require pre-cooking water absorption before cooking . water draining step is colloquially believed to make water measurement more accurate . the water for cooking is added to the inner bowl by using measuring cups . cold water is normally added, but boiling water is used for cooking sushi rice . different kinds of rice require different amounts of water . graduated marks for the right most models give a countdown in minutes to the “ready time” or beep when done . some rice, e.g., long-grain or scented rice, do not seem to require this post- most dedicated home rice cookers are of the electric type . commercial or industrial use, there are many varieties . many modern cookers have a heat-insulating casing and a warming mechanism . commercial models can cook 20 or more cups . rice roughly doubles in size during cooking . a 10 cup (uncooked) rice cooker can produce up to 20 cups of cooked rice . some gas cookers also have electric stay-warm mechanism . however, the usefulness of this feature degrades over time . a microwave may be more energy efficient or better suited to reheat rice that will sit longer than pressure-cooking models can raise the water’s boiling point higher, e.g., from 100 °C at 1.0 atm up to about 110 °c at 1.4 atm . pressure cookers some pressure rice cookers have a varying pressure control mechanism that creates repeated pressure/release cycles during the cooking . many cookers now have microprocessor-controlled cooking cycles, which are often used to adjust for rice and cooking the typical methods of cooking long-grain rice are boil-and-strain and steaming . brown rice generally needs longer cooking times than white rice, unless it is broken, or flourblasted . african rice, Oryza glaberrima, is an entirely separate species, but can be cooked in the same way . many models feature ability to cook sticky rice or porridge as an added value . multi-purpose devices with rice cooking capability are not necessarily called “rice cookers” but typically “multi-cookers”. it is possible to cook soups, stews or sponge cakes in electric rice cookers. a rice cooker cooks the contents at about 65 °C (150 °F) in a few hours, the stew is fully cooked and ready to eat . some rice cookers can accommodate a steaming basket gas powered rice cookers heat the cooking pot much more quickly than electrical power sources . cooking at higher temperatures allows rice to absorb water faster and cook more quickly . uneven cooking of the overall batch of rice often leads to mushy commercial gas pressure cookers use pressure cooking to produce uniformly cooked batch of rice . pressure cooking allows rice to cook faster and steam properly, resulting in a better quality batch . gas flow into the burner is halted once ideal cooking for rice employs a method of a fast heating source along with a uniform delivery of that heat . the rice cooker was a rectangular wooden box with two electrodes attached to opposite ends . to cook the rice when the rice was cooked, the reduced water quantity caused an increase in resistance . this reduced the power to a stay-warm state . in 1945, the Japanese Mitsubishi Electric Corporation was the first company to produce an electric commercial rice cooker electric home rice cookers used simple concept of heating rice to cook and turning off the heater when the temperature rose to a certain point . many makers continued to experience failures in trial-and-error approaches . the first practical electric rice cooker was invented by Yoshitada Minami . it became possible to cook rice practically by employing the triple-chamber rice cooker . the Toshiba Corporation placed the first commercially successful automated electric Toshiba produced 200,000 rice cookers per month for the Japanese market . soon, Toshiba was producing 200,000 cookers a month . four years later, they were found in half of Japanese homes . electric rice cookers use an insulated outer container and an inner removable bowl . one g () is 180 ml, or approximately 25% smaller than the American measuring cup . the rice cup measure is normally based the stay-warm function can keep rice warm for up to 24 hours at a temperature high enough to suppress growth of Bacillus cereus, a cause of food poisoning. other makers soon followed suit. since the 1980s, higher-end electric rice cookers have used microprocessors to control the cooking process . since the 1990s, many models allow users to select desired cooking results for rice (e.g., soft, in the late 1980s, some higher-end electric rice cookers started using induction heating . this type aims to produce tastier cooked rice by controlling the heating process more precisely . Expensive models often provide china started-mass-producing economical electrical rice cookers with limited functions . Japanese makers have been attempting to compete by seeking a niche in models with added value . more deluxe models appeared on the market and attracted much despite the high price, it sold 10,000 units within six months after it was introduced . it set the trend of extremely high-end models in the market . there have been pottery-based electric cooking appliances in china since the 1980s rice cooked either in a traditional rice cooker used in hearth or a gas pressure cooker . most of the rice cookers were made in china, south Korea and Japan . a rice cooker is a standard appliance in kitchen Most of Chinese production was from Zhanjiang City and Lianjiang city in Guangdong Province.