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Is it okay to boil water more than once, or should you empty the kettle every time?

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Math and the Sciences

Is it okay to boil water more than once, or should you empty the kettle every time?

Avocado_studio/Shutterstock Faisal Hai, University of Wollongong The kettle is a household staple practically everywhere – how else would…

July 21, 2025