Winemaking of Porto Barao de Vilar Harvest 2001: The winemaking process takes place in stainless steel vats with 1 day of pre-fermentation and maceration and 2 days of fermentation. A Colheita Port is a wine dating back to a single harvest, aged in wooden casks for seven years and bottled to order. Colheitas Barão de Vilar were carefully selected and aged in French oak casks, to demonstrate a rich and full-bodied structure, with a perfect and elegant balance characteristic of the oldest tawnies.