Mencía, known as jaen in portugal, is a grape variety native to the western part of the iberian peninsula. in spain, it is planted on over 9,100 hectares (22,000 acres), with another 2,500 hectares (6,200 acres) in neighboring portugal. it is primarily found in the bierzo, ribeira sacra, valdeorras, monterrei and dão wine regions.most wines produced from mencía have traditionally been light, pale, relatively fragrant red wines for early consumption. this style of wine was the result of post-phylloxera plantations on fertile plains, which tended to give high yields but diluted wine. in recent years, much more concentrated and complex wines have been produced by a new generation of winemak...

Source: Wikipedia