The Chardonnay grapes for the Blanc de Blancs were harvested in September from various vineyard sites of the wine estate, mainly those on southeast slopes with calcareous soils, which lends warmth and, at the same time, freshness to the wine. The acidity and maturity of the grapes were at the exact point of readiness when they were picked and placed in small crates and then pressed very gently in the cellar.