As soon as Pascual Toso arrived in Argentina, he settled in Mendoza and started working in an import business. Very soon, however, he came to appreciate the exceptional quality of the grapes in the region and firmly believed that there was a promising future for winemaking in Mendoza. As he had been involved closely with the development of his family wine business in Piamonte, he decided to do the same in Mendoza. In 1890, Pascual Toso established his first winery in San José, Guaymallén.

At the beginning of the twentieth century, our founder decided to expand the business and acquired vineyards in Maipú, which he correctly believed contained the best quality grapes in the region. At his estate "Las Barrancas", he built another winery. Today, the Maipú area is considered by technicians to be the prime wine-producing area not only in the region of Mendoza, but throughout Argentina.