Tons de Duorum is inspired by the bright colors that result from the reflection of the sun on the Douro River ("tons" means color nuance), creating different tones in the vineyards. This wine expresses the terroir of the fantastic Douro region, the result of a unique interaction between nature and human effort. Made from a blend of Touriga Franca, Touriga Nacional and Tinta Roriz sourced from the Castelo Melhor and Costodio vineyards.