Résumé
The internship report focuses on a six-month experience at Vignobles Bardet, a family-owned estate located in Saint-Émilion, known for its quality red wines. The company, led by the Bardet family since 1704, blends tradition and innovation to enhance the quality of its products. This internship allowed for the application of theoretical knowledge in oenology learned during training, and participation in vineyard management, winemaking, and innovative experiments, notably the addition of sorted fresh grape stems during vinification to enrich the aromatic and tannic profile of the wines. The report details the various activities and responsibilities assigned, which include protecting young plants, monitoring grape maturity, and participating in the winemaking and wine aging processes. Vignobles Bardet employs unique winemaking methods and has advanced equipment to maintain and enhance the quality of their production. The experiment involving the addition of grape stems during vinification is particularly highlighted. This process aims to determine the impact of adding sorted stems on the chemical and sensory characteristics of the wine, potentially offering a sustainable alternative. Long used in Bordeaux during whole-bunch winemaking, grape stems had disappeared and have been reintroduced in recent years in various estates. Many aspects are still under consideration, such as the maturity of the stems, how to incorporate them into wines, their forms, and how they can be analyzed. Are controls for stem maturity feasible?