a patersbier . [ 4 ] [ 5 ] It has been speculated that Westmalle's choice of three types of beers was based on the Holy Trinity . Westvleteren Brewery ( Brouwerij Westvleteren ) Westvleteren Blonde (green cap), 5.8% ABV , introduced on 10 June, 1999. Westvleteren 8 (blue cap) (formerly Extra