Dough - Vacuum Cleaners
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Why do we buy so many vacuum cleaners?

Dough is a new series from BBC Radio 4 which looks at the business behind profitable, everyday products and considers how they might evolve in the future.

In this episode, the entrepreneur Sam White speaks with experts from the world of vacuum cleaner manufacturing, including:

Grahame Capron-Tee - who has seen many significant changes during his long career in the industry;

Nick Grey - the inventor and founder of Gtech;

Anthony Williams - a global director at the data insights company, GFK.

Also joining them is the technology expert and applied futurist Tom Cheesewright, to offer his insight and predictions on what might be coming beyond the current production pipeline.

Together, they explore how vacuum cleaners went from exterior, horse-drawn contraptions to interior, automatic robots scuttling around on the floor, explain why UK households buy so many vacuum cleaners and give their expert views on game-changing - and pointless - product innovations.

There's a debate about bagged versus bagless vacuum cleaners and a discussion on when robotic vacuum cleaners might be able to clean more than just the floors.

Dough looks at where the smart money's going now and what that could mean for all of us in the years ahead.

Produced by Jon Douglas. Dough is a BBC Audio North production for BBC Radio 4 and BBC Sounds.

Sliced Bread returns for a new batch of investigations in August when Greg Foot will investigate more of the latest so-called wonder products to find out whether they really are the best thing since sliced bread.

In the meantime, Dough is available in the Sliced Bread feed on BBC Sounds