Automated Appliances:
Robotic Rice Cookers
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Wahiawa Middle School -
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#05-0099
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The
rice cookers of today are a
household tool used by many. Basic rice
cookers use simple
electronics with mechanical and thermal sensors. Most rice
cookers have an outer insulated container with a heating element and a
removable nonstick cooking pot. There is a spring in the bottom
to ensure that the thermostat touches the base of the pot. The
thermostat ensures that the temperature does not exceed 100 degrees
C so that the water won't boil. At that point, the thermostat
will trip and switch the rice cooker off or to the warm mode[7]. Rice
cookers normally have a cooking capacity
of 3-10 cups of uncooked rice; few have a larger capacity.
http;//en.wikipedia.org/wiki/Rice_cooker
Some models like DreamLG use inductive heating
technology to cook the rice at higher temperatures than is possible
with ordinary electric conductive heat rice cookers. Higher
temperatures reduce cooking time. If the temperature is simply
raised on a conductive heat rice cooker, the kernels "pop" rather than
cook through, creating unevenly cooked rice with an unpleasant texture
and reduced flavor. Inductive heat also allows rapid temperature
adjustments, so cooking can stop as soon as optimal conditions are
reached, reducing scorching, discoloration, and sticking[8].
http://www.dreamlg.com/en/cook/useful_features3.shtml
One of the
newest rice cookers is the Zojirushi ZAC-Series Neuro Fuzzy Rice Cooker. This new rice cooker has a computerized “fuzzy
logic” temperature control system for outstanding results[9].
Fuzzy logic helps the rice cooker to interpret
ambiguous data much like the human mind does[10]. This
rice cooker also
has a non stick pan (known as Teflon), a timer control,
automatic keep
warm and reheat cycle, menu settings including pre-washed rice (rinse
free rice) cooking function, and a sturdy carrying handle[9].
http://www.zojirushi.com/ricecookers.html
Despite
all of the progress made in present day rice cookers, there is a down
side. The rice still needs to be washed manually unless you have one
that has a prewashed rice (rinse free rice) cooking function. In fact, some people feel that the rinse free
rice does not cook as well and still prefer to wash it . Even if
you had one with a timer, washing the rice in
advance would affect the quality of the texture of the cooked
rice due to the extended soaking. To a true rice eater, rice is
best
when it is freshly cooked.
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