Winemaker Jorge Serôdio Borges’s great-great-grandfather produced this tawny Port at the end of the 19th century. It was made from a field blend from the family's Quinta da Manoella vineyard (which is still in use) and includes vintages from 1870 to 1900. Since then, five generations of the Serôdio Borges family have guarded the Port, inspiring the name "5G." Now that the Port has surpassed 100 years old, the family has decided to release 1,200 bottles to the public.