Efficient energy use of electric cooktop
Please help settle an argument. When I cook, eg. boiled potatoes, I bring them to the boil, with the lid on fully, then turn the heat down to about 3, so the water is still bubbling but less.
My friend keeps the heat to 6-7 and the lid partially off to stop the lid 'popping off'.
I think my method is more energy efficient. I do not mind being proven wrong.