Input (grade 13): The wine is then stored and aged, often in barrels stored in a cave (pronounced "ka-ve" and meaning "cellar" in Portuguese) as is the case in Vila Nova de Gaia, before being bottled.
Output (grade 6): The wine is then stored and aged. For aging, it is often put in barrels stored in caves (Portuguese meaning "cellars") as is the case in Vila Nova de Gaia.