Inside a Colorado marijuana factory
20 February 2014 Last updated at 00:15 GMT
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.