Distilled water is easy to make at home once you know how to do it.

Distilled water undergoes a process to remove impurities like minerals and other trace elements to make it as pure as possible. Unlike a basic drinking water filter, distilled water can be used to run ...

Distilled water might not be something you think about every day, but in the middle of an emergency, it can quickly become one of the most important supplies in your home. Whether you're using a CPAP ...

Listen to the full series on BBC Sounds. Fractional distillation works because the different liquids have different boiling points. When the mixture is heated: vapours rise through a column which is ...