Chardonnay grapes from a 1.2HA plot called Les Perrières, where the vines are around 30 years old. This is the plot chosen for the Blanc de Blancs, and Olivier hopes to have a crop there every year, so as to follow the potential of this terroir. This plot has a shallow, poor topsoil 10 to 50 cm deep over the rocky subsoil of soft chalk with carbonated silex or onyx. This is a rare geological combination in Champagne. The exposure is south-southeast.