Scientists 'solve' the ketchup problem
Media playback is unsupported on your device

Scientists 'solve' the ketchup problem

Scientists in the US may have found a solution to one of the classic dinner table problems - getting every drop of ketchup out of a bottle.

As the BBC's Pallab Ghosh reports, they say it is down to a non-toxic coating that makes the inside of bottles super-slippery.

  • 20 Feb 2017
Go to next video: Testing your invention