Media playback is unsupported on your device

US start-up offers grocery deliveries in an hour

29 August 2013 Last updated at 10:33 BST

A Silicon Valley start-up is riding a new wave of express grocery deliveries - using smartphones and personal shoppers to deliver your weekly shop within the hour.

Copy-cat services are planned for London and elsewhere - but the real question is: does it really deliver?

Richard Taylor reports.

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.