Heating that morning cup of coffee

Heating that morning cup of coffee

Some folks believe a microwave oven is the most efficient way to heat water for a cup of coffee, tea, or hot chocolate. They're wrong, at least according to a researcher at Lawrence Berkeley National Laboratory. He measured the energy used by an average microwave oven, an electric stovetop, and a gas stovetop. Turns out the electric stove used 25% less electricity than the microwave oven. The gas stove was even less efficient, using more energy than a microwave. But if the price of gas is low enough, it could cost less to heat water with gas than by microwave.

For more data and the latest on energy trends visit

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.