@ottaross @skatem While a microwave doesn't have to heat a container as well as the water, it does lose energy in converting electricity to microwave. And the container has to heat up anyway for the water to boil, so I think it's a wash. Another con is knowing exactly when to stop, whereas a kettle nor dispenser have this problem. An electric kettle has a thin bottom above the heating element, and so has less material to heat up. I'm thinking that is probably the way to go if you put in the *exact* amount of water needed.