We’re glugging more water than ever before but hating plastic bottles for both environmental and (possible) health reasons. So stainless-steel flasks are very in. This rechargeable-battery electronic bottle, Larq, from San Francisco, does two things basic water bottles don’t. It keeps cold water cold for 24 hours, and hot drinks hot for 12. Fair enough. But Larq is also the first self-cleaning bottle. Using UV-C light, it claims to kill up to 99.9999 per cent of bacteria and 99.99 per cent of viruses.
Even in Adventure mode, Larq won’t magically turn brackish pond water into Evian – or destroy agri-chemicals in a stream, but give it clear river water in the wild and it promises to make it safe.