Brewers who run bars are being bitten twice by a shortage of carbon dioxide. The gas is integral to beer production, used in tap rooms to push it through the pipes, and in breweries to carbonate it to the desired level of fizziness.
The cost of CO2 has risen as much as five times. But on a sunny afternoon in the capital, customers say they'll pay more for their craft beer if they have to.
Reporter Kate Green and cameraman Angus Dreaver have the story.