PSI is a “neo-cooperative” venture between the partners and many of the best independent grape growers in Ribera del Duero. It is a wine that is designed to give something back to the small farmers that Peter feels have not benefited from the emergence of Ribera del Duero. Through purchase of their grapes, he encourages them to maintain old vine stocks as well as engage in organic and biodynamic viticulture. This is a friendly wine; one that you might call a ‘village wine.’ 30+ day maceration with punchdown. About 18 months in a mix of cement tanks and old barriques and large barrels.