A blend of 1/3 Grand Cru reserve wine from the solera started in 1990, and that is designated for Giraud’s MV Fût de Chène. The other 2/3 would be from an older “Esprit Nature” solera dating to the 1950s. For the first perpetual reserve, the most recent contribution to the older solera was the 2019 vintage, hence the numeric ID “90-19” to represent the time stamp. 100% solera-based cuvée from Henri Giraud is impressive. PR 90-19 is a blend of 80% Pinot Noir and 20% Chardonnay. It was barrel fermented in Argonne oak and has a minimum of 3 years on lees before disgorgement. 8000 bottles were produced for sale.