Energy efficient rice cooking... the answer might surprise you!
Our son Ty did an experiment for his school science fair on energy efficiency of different techniques for cooking brown rice. I had no idea how inefficient rice cookers were!! Our rice cooker ran at a constant maximum wattage until rice was done (no simmering on lower heat!). This used just under 300 watt-hours to cook 350 mL of rice. He compared it to cooking as per directions (bring to boil, reduce heat to simmer). This used only 170 watt-hours. And then the same thing, but turning off the heat after boiling and wrapping the pot in an old wool sweater (down to 100 watt-hours). Finally, there's 'zero electricity' option of a solar oven...
See the graph below for results.
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