Over the years, Delaforce has developed a reputation and aging skills that are expressed in the company's renowned aged tawny ports. The house is also recognized for its elegant and finely elaborated Vintage Ports, produced from grapes grown at Quintas do "Roncão" and "Rio Torto" in the Douro. Today, Delaforce is owned by Real Companhia Velha, an independent family group entirely dedicated to the production of Port and Douro wines, which also includes the famous and historic company of Real Oporto. More than 30 Douro grape varieties can be used to make Porto, but only a handful of the best are planted in Delaforce vineyards, each contributing its unique character and flavor to the blend. These include Touriga Francesa, Touriga Nacional and Tinta Roriz. The grapes are selected and harvested by hand in mid-September and, in the case of Delaforce vines, are placed in small trays that keep them in perfect condition during transport to the winery.