PSI is the 23rd letter in the Greek alphabet and is the name of Peter Sisseck's (of the coveted Pingus and Flor de Pingus) utopian wine from Ribera del Duero. Peter has sought out the best independent vineyard growers in Ribera and is incentivizing them to improve viticultural practices and shun chemicals, lower yields and practice biodynamics by paying them increasingly for the fruit as they improve. The result is a "give back" to the region wine that also expresses the "soul" of Ribera.

Blend: 90% Tempranillo, 10% Garnacha

94 Robert Parker's Wine Advocate

Tasted just before bottling, so a sample of the final blend, the 2023 PSI is juicy, ripe and approachable. It is a little showier and headier, despite having similar alcohol to the bottled 2022 (perhaps a tad higher, but not quite reaching 14%), and it feels a little riper, with peachy notes and some decayed flowers. It has abundant tannins and feels like it's in need of some more time in bottle. This is usually the case for PSI: the tannins need time. They are resolved quite quickly, but it does need a bit of time. It should be bottled in May 2025.
Barrel Sample: 93-94

94 Vinous

The 2023 PSI brings together fruit from 12 villages, mostly Gumiel de Mercado and Villatuelda in the Soria sector of Ribera del Duero. The project began in 2007 with the recovery of neglected vineyards, now totaling 200 hectares across about 700 parcels, 25% of which are estate-owned. Garnet colored, it opens with pine and herbal notes, then red fruit—cherry and a touch of plum. The palate shows fine-grained tannins, a midweight texture and detailed fruit. The bottle will reveal the Soria character in the interplay of fine tannins and acidity.
Barrel Sample: 92-93