Elan Nelson in marijuana factory
Media playback is unsupported on your device

Inside a Colorado marijuana factory

Colorado became the first US state to allow firms to sell recreational cannabis on 1 January.

Since then, Medicine Man in Denver, Colorado has been doing a steady stream of business.

They've recently outgrown their 20,000 sq ft facility and have plans to double their size this year.

Elan Nelson gave the BBC a tour of the facility.

  • 20 Feb 2014
Go to next video: Colorado marijuana shops 'selling out'