Two B.C. brewmasters are joining forces to create a special craft beer Christmas advent calendar.

The "Holiday Countdown" beer box is the brainchild of the brewmasters from Parallel 49 and Central City Brewers. It's an assortment of 22 mystery craft beers from the breweries, plus two special collaboration beers.

The mystery box was unveiled at an event at CRAFT Beer Market Wednesday, and other rollouts are scheduled in Edmonton and Calgary next month.

"We did a sort of black forest cake beer. So it's kind of a strong porter and we put cherries and cocoa nibs to get the chocolate flavor," said Parallel 49 brewmaster Graham With.  

Gary Lohin of Central City Brewers created a Belgian double style for the boozy present box.

"It's a classic style and it uses a yeast that the monks use in Belgium and I also added rum soaked raisins in the beer, being the holiday time I thought that kind of fit, Christmas pudding style too," he told CTV News.

The craft beer advent calendar sells for $74.95 a case and is available in government liquor stores across B.C. and parts of Alberta.