Often referred to as The Queen of Trappists. It was first made in 1931, and has a complex and unusual flavor and aroma produced by a unique strain of yeast. The beer is light in color, slightly cloudy, and has a large, foamy head. There is a complex aroma of leather, horse blanket, spice, and many other earthy components.
As with all other Trappist breweries, the beer is only sold in order to financially support the monastery and some other good causes. All of the profits from the sale of the beer is distributed to charities and for community development around the region.
Beer critics consider Orval, like most Trappist beers, to be world-class quality, but it is definitely an outlier within the group. Its very distinctive taste is largely attributed to two parts of the brewing process. One of these is the use of dry hopping, in which large meshed bags of hops infuse the beer during the three week maturation period. The other is the use of Brettanomyces yeast during this same maturation, which are a local wild yeast.
Orval beer is bottled exclusively in a distinctive skittle shaped 33 cl bottle. The bottling plant has a capacity of 24,000 bottles per hour. The beer is then matured at 15°C for a minimum of four weeks on site before being distributed. Beer that will be sold at the Abbey or local cafe is matured for six months.
As the beer is bottle conditioned, its flavour can improve over the years with ageing, although its hop character and relatively low alcohol make it less suitable for this purpose than some other Trappist ales.