Sliced Bread - Series 13: Water Filters (Live at Cheltenham Science Festival)

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<p>Can jug or under sink filters, promising to soften tap water and improve taste, really take out what they claim?</p><p>Greg Foot gathers the experts live at Cheltenham Science Festival, dives into the data and crunches the numbers to get answers for listener Elaine.</p><p>Each episode Greg investigates the latest ad-hyped products and trending fads promising to make us healthier, happier and greener. Are they really 'the best thing since sliced bread' and should you spend your money on them?</p><p>All of our episodes start with YOUR suggestions. If you’ve seen an ad, trend or wonder product promising to make you happier, healthier or greener, email us at <a href="mailto:sliced.bread@bbc.co.uk">sliced.bread@bbc.co.uk</a> OR send a voice note to our WhatsApp number, 07543 306807.</p><p>RESEARCHER: PHIL SANSOM PRODUCERS: KATE HOLDSWORTH AND GREG FOOT</p>