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Claire wrote:
yes. and yes. 

i have kettle. i only need one cup. so i just boil one cup in the microwave.

Focalin wrote:
Microwave ovens work by using very high levels of a certain frequency of RF radiation (in the microwave spectrum) to heat foods. When microwaves are absorbed by food containing water, it causes the water molecules to vibrate, which produces heat. Microwaves do not use x-rays or gamma rays, and they do not make food radioactive. Microwave ovens can cook food, but they do not otherwise change the chemical or molecular structure of it.Microwave ovens are designed so that the microwaves are contained within the oven itself. The oven only makes microwaves when the door is shut and the oven is turned on. When microwave ovens are used according to instructions, there is no evidence that they pose a health risk to people. In the US, federal standards limit the amount of radiation that can leak from a microwave oven to a level far below what would harm people. Ovens that are damaged or modified, however, could allow microwaves to leak out, and so could pose a hazard to people nearby by potentially causing burns.Although some people have been injured from microwave ovens, most often they have been burns from contact with steam or hot food.source link here

potionsky wrote:
but why not just fill the kettle with the amount of water u need

Photosynthesis wrote:
I.... what? But, why?