The brewing methods used by Unibroue have been inspired by the great European brewing traditions and, in this respect, are one of a kind in North America. The methods used stand out, in particular, from the brewing methods of the mass-producing breweries and even from the other North American craft brewers because the beer is refermented in bottles and partly-clarified only. Through these methods, specialty beers with an evolved taste and a long shelf life are produced.
The manufacturing of the beer at Unibroue is done in five phases: brewing, fermentation, clarification, bottling and kegging and, finally, refermentation in bottles in the holding room.
It is unnecessary to add preservatives or to pasteurise the beer, a process that makes the beer sterile and without a soul.
Given that the beers contain no chemical additives or preservatives, they require strict quality control. This all-natural brewing process is also why these beers are higher in alcohol content and can provide a rich flavour without the bitter aftertaste of conventional beers. Moreover, they have a longer shelf life and adapt very well to the room temperatures.