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The Purist is where you can find the latest ideas, great inspiration and up to date info on the world of drinking water, purification and healthy living.

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​What does TDS in water mean?

What’s the meaning of TDS in drinking water and is it a good measure of quality? We take a look at what constitutes TDS in water and examine all the facts around the different levels of TDS in wa...

By Bob Fear

How long can water be stored?

Does water expire? How long does it take for a glass of water to go bad? How long does bottled water last? Yes - water can go bad, but how long this takes depends on how your water’s been treated...

By Bob Fear

The best reusable drinking straws

We look at the best, most popular reusable drinking straws available in the UK and assess the difference between silicone straws, metal straws, bamboo straws and glass straws. Which are the best...

By Bob Fear

16 shocking plastic waste statistics

We’re bombarded with so many different facts and figures about plastic pollution, it’s hard to take stock of where we are right now. Of course it takes time for official, trustworthy statistics t...

By Bob Fear

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