It is common to filter everything from impurities to flavor notes out of premium vodka. These particular vodkas are some of the most heavily filtered on the planet.

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Much of the water available in our faucets and taps can contain impurities that can make it either slightly unhealthy or ...

I've got a question for you guys. Do you think I can fit this length of polystyrene into this jar? Yes. No. No? Yeah? I like that – you lot have got some faith in me! Excellent. Right, this is what we ...