The Estournelles-Saint-Jacques climat covers two hectares on the south-facing slopes of the Côte d'Or, overlooking the Combe de Lavaux valley. This parcel enjoys a strategic position on the upper part of the slope, just above the Premier Cru Lavaux Saint-Jacques and in close proximity to the Grand Cru Clos de Bèze, allowing the old vines of Pinot Noir to benefit from both the drainage and sun of the upper slopes. The climat extends from 315 metres to 340 metres in altitude, with a South-South-East exposure, on bedrock formed of crinoidal limestone with a band of Ostrea acuminata marl at the upper edge. The soils form a complex mosaic of red clays mixed with a significant quantity of stony scree and limestone, as well as white marl in the subsoil.

Domaine Humbert Frères practices sustainable farming and holds the High Environmental Value (HVE) level 3 certification, minimizing the use of chemicals and naturally maintaining the soil. The estate cultivates 7 hectares of vines, all owned, with a remarkable parcel portfolio and plant material largely composed of old vines over 40 years old. After a cold pre-fermentation maceration lasting about a week, fermentation takes place in concrete vats under close supervision, and the wines are aged in oak barrels for 18 months, with the proportion of new wood carefully adjusted to 100% for Grand Crus and Premier Crus. Since 2014, the wines have been neither fined nor filtered, preserving their full richness and ageing potential.