I wondered the same. It can’t affect the taste. Is it a principle thing? I boil a kettle on a stovetop every morning for coffee I make in a French press because that’s how I like to do it, but I’d microwave a cup of water for tea in a pinch.
Also don’t really trust the hot water from the tap. Idk why.
@BenAveling If boiling water drives out oxygen...that means all you have left is a cup of hydrogen?
Science class was a long time ago for me. But I think a cup of hydrogen would have some interesting side effects. Nevermind what it would do to the taste of coffee or tea!
Heating a compound so it goes from solid to liquid to gas doesn't chemically change the compound. Whether it is heated up on the stove, in a kettle, or in a microwave, hot water is hot water.