Domaines Schlumberger – Pinot Gris Grand Cru Kitterle Designation AOC Alsace Grand Cru Vineyard Size -- Soil type Volcanic sandstone Vine varieties Pinot Gris Planting density -- Average vine age -- Vine growing conditions -- Pruning method -- Grape harvesting Entire grapes are pressed Vinification Fermentation in thermo-regulated tuns for one to four months. Matured on fine lees for eight months. Maturing --