Water Filters (Recorded Live at Cheltenham Science Festival)

Sliced Bread

BBC

Health & Fitness

4.6 • 634 Ratings

🗓️ 10 July 2025

⏱️ 25 minutes

🔗️ Recording | iTunes | RSS

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Summary

Can jug or under sink filters, promising to soften tap water and improve taste, really take out what they claim?

Greg Foot gathers the experts live at Cheltenham Science Festival, dives into the data and crunches the numbers to get answers for listener Elaine.

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?

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 [email protected] OR send a voice note to our WhatsApp number, 07543 306807.

RESEARCHER: PHIL SANSOM PRODUCERS: KATE HOLDSWORTH AND GREG FOOT

Transcript

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0:37.3	Hello, I'm Greg Foote and welcome to Slice Bread, the BBC Radio 4 show that investigates
0:41.6	the wonder products promising to make you happier, healthier or greener.
0:45.5	And today, we're recording at Cheltenham Science Festival.
0:51.0	Each episode of Slice Bread, we follow the crumbs of evidence to find out if one of your
0:55.3	suggested wonder products is indeed the best thing since sliced bread, or marketing BS.
1:00.4	And today's suggestion comes from Elaine Carr from Bristol.
1:03.1	Welcome to the stage Elaine!
1:07.6	Now, because we are in the historic spa town of Cheltenham, today we're investigating a water-related
1:14.1	product. Elaine, what would you like us to investigate and why?
1:17.2	Hello, Greg. Well, I would like to investigate water filters.
1:22.0	So I grew up in the Yorkshire Dales and I now live in central Bristol and the water quality
	...

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