Hey guys,

After talking, reading, too much dirty politics on Sajha, especially Nepalese politics, I have a silly question to ask

I was baking corn and vegetables in the rice cooker using its pot (momo ko pot, which came along with the cooker), after 45 min. it was still cooking that means red light was still on. But when I cook rice, after 15. min. the cooker’s yellow light turns on which means the cooker has stopped cooking and it’s warming only.

My question is how does the rice cooker know whether I am cooking rice or just boiling water? Can anybody explain to me?

in most of the cookers, the base of the pot acts as the thermostat....when the water in the pot dries up, the temperature of the base of the pot increases, and this increase in temperature is detected by the thermostat and the power goes to 'warming' . This means, when there is a lot of water in the pot, it will not change to warming, which happened when you were cooking corn. but when you cook rice, the water dries up fast and thus the signal goes to 'warming'. If you want to test this, try putting the cooker on with very little water in it.

Great question!! Don't know how great that technology is but even a $5.7 rice cooker bought in KTM knows what's being cooked. May be some Physics genius can explain this phenomenon.

I agree with Cowboys, smoking funny things sometimes generates such questions...not blaming you 'bishal'

its not silly question..............i google some answers,

http://www.howstuffworks.com/question35.htm

 

At sea level, the boiling temperature for water is 212 degrees F or 100 degrees C. As soon as all of the liquid water has evaporated (or, in the case of the rice cooker, as soon as all of the water is absorbed by the rice), the temperature inside the container immediately rises. The appliance has a thermostat that can detect when the temperature rises above 212 degrees F in the container, and it turns itself off.

http://automaticricecooker.neurondev.com/zojirushi-rice-cooker/how-does-a-rice-cooker-work

A rice cooker contains a rice pan (a container) to hold the rice and water. A heating element to heat the food, and a lid with a small hole to release excess steam. A small temperature sensor is hidden in the bottom of the rice cooker. When the water in the rice pan begins to boil, the temperature of the food stabilizes at 212 degrees Fahrenheit. As the water boils, the rice absorbs the steam and some steam escapes through the lid. When the water is nearly all gone, the temperature of the food will begin to rise above 212 degrees. This change in temperature is monitored by the temperature sensor inside the rice cooker and triggers a switch to turn the cooker off.

Some rice cookers like neuro fuzzy logic rice cookers (a popular example is the zojirushi brand) are more sophisticated and will adjust the amount of heat based on the amount of water, and the amount of heat absorbed by the food. If too much water has been added to the rice pan, these rice cookers can adjust the heat to compensate. Most rice cookers however, do not have this feature.

Oh boy...i'm starting to remember all those sophomore years conversation over a bong bowl. Too deep, maybe a conspiracy....ha ha

NIce thread, after reading all those silly and politics threads, with this thread I actually learned something......Thanks

Thanks copycat, I agree with you.

ha ha.. I firmly believe there must be some conspirancy of Maoist and Prachanda in this case too.. Dont you think so?? It must be.. These terrorist must have done something to the rice cooker too.. ;))

OK . .one more question.. If you touch electric heater wire in Nepal, you get electrocuted (sock). But if you touch the heating metal ring in oven (in kitchen) , even when it is turned on, you DONT get electic sock .. any reason ?? ;-))

PS. I never imagined such a majority of people who visit sajha would find this 'rice cooker magic' a big mystery... Now the picture is getting clear - why there were no quality threads in sajha these days..

good answer copycat. makes sense.

if heavy current try to pass through relatively resistant path, that path gets hot(and red) creating heat and light. electric resistance lets less electon to pass through. that's why that path is hot and red but has low current in it. if you touch the good conductor side-it gonna shock you heavily but in the resistant path...........it shocks you less.

..........i think that.

wow! perfect answer copycat..  we need such type of mind in politics....Appreciated....

Yea there should be some conspiracy theory behind it too.

maoists used to be involved in Pressure Cooker business during the freaking War. So without a doubt I will say the rice cooker problem is something associated with these bloody terrorists.

Lets punish these traitors and lets cook our rice properly and feed the hungry ones. We need to make sure every citizens are cooking their rice using their Rice cookers which works perfectly. They should not be having problems with this red and yellow lights.

All we need is our rice get cooked.....


.PEACE!!!

The answer by copycat is right. It has a thermostat and set to turn into warm when temperature reaches about 100 degree Celsius or more. When you cook rice the water evaporates and temperature reaches above 100 deg celsius and the thermostat turns it into warm mode. But when you boil only water, the temperature is still below or about 100 deg celsius as water boils at 100 deg celsius so does not go to warm mode. If you keep the cooker on then all water will evaporates and then it turns to warm mode, in principle. But in practice you may burn out your cooker as it takes a long time to evaporate all the water.

I have a silly question too.

How does my friend know where I am at...all the time??

Where I go, he calls me at my cell phone and he gets me all the time!! How??

Mr./ Miss ANS,

Please start a quality and genuine thread here on Sajha. It’s easy to say than do it, just like Nepalese politicians do. I’ll be watching your 'quality’ thread.

Stiffler,

 

yeah man, I have been trying to find the same thing...how come my friends know where I am at all the time.?

And that's not a silly question man...that's a Million dollar question.

Sorry, double posting

bishal

 the point is... i was surprise the people dont know the reason of that cooker magic. .. I believed everyone of us must have it studied something similar in our highschool science.. I am not offending your posting.

thats simple man...its easy science rice cooks faster than corn....its chemistry

Themostat!

jasle je kura bhane ni, Gothalo bhai (cowboy) le Bisal babu le 'Purple' prakaar ko maal taanyaa thyaakaai thaha paayekai ho yaar.
yesso kasaile maal ko thread ni suru gare ramro hunthyo ki?
teso gare kaso holaa?