• Cookware: History and Heating Principle
  • At the beginning, cookware took advantage of bioenergy, namely firewood, to heat food, and now electricity is applied for heating all over the world. For bioenergy, the heat source is the energy produced through biomass burning, and it consumes oxygen in the air to produce carbon dioxide. On the other hand, the emergence of electric energy marks the birth of the second industrial revolution, since when, various electric equipment and electronic application technologies have come into being. The electric energy is characterized by cleanliness and convenient transmission, but it also brings about certain electromagnetic radiation.