Alain Deloire’s Post

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Viticulture professor retired from the Agro-Institute (Montpellier) since August 3, 2023

Terroir in the Wine World: A Catch-All Concept  and Yet an Important One 😎 Terroir is a concept, not a scientific discipline. There are multiple definitions of the concept of terroir, along with numerous diverse publications and comments on the topic of wine terroirs in relation to wine typicity. For more on this, by visiting https://oeno-one.eu/ you'll find a wealth of publications and conference proceedings covering aspects such as vine and grape physiology, climate, terroir, and wine typicity. For the definition of wine terroir, it's recommended to refer to the OIV - International Organisation of Vine and Wine Terroir Definition: https://lnkd.in/dvynYq9e Wine typicity is another topic that stirs up plenty of discussion and debate! Why not use the definition of wine typicity offered by sociologists: "typicity is an agreement on taste"! For more clarity, it's suggested to talk about the aromatic profiles of wines! 🍷 One of the favorite discussion topics around the concept of terroir is the idea of producing a unique wine from a combination of soil, climate, and grape variety. But that’s not the case! 🤔 In fact, even from the same vineyard plot, by modifying cultivation practices (such as leaf removal vs. the microclimate of the grape clusters, irrigation vs. the belief that great wines can’t be made in dry terroirs), and especially by altering the harvest date, it’s possible to obtain different aromatic profiles in the wines. (Let's not forget that aroma precursors in grapes don’t come from the soil or rocks, and that yeasts play a significant role in shaping the aromatic profile of wines, highlighting the vital roles of growers and winemakers) 💪 The attached figure shows an example of the evolution of the aromatic profile of wines from a white grape variety (in this case, Chenin Blanc, cultivated in a warm terroir near Stellenbosch). Harvests were carried out at 7-day intervals, and sensory analysis clearly shows that, from the same vineyard plot with identical winemaking methods, it’s possible to obtain three different wine styles (in collaboration with Distell, South Africa, 2012). Of course, the soil (notably its mineral, nitrogen, and water content) and climate play an important role in determining the wine’s potential quality. Lastly, it has been observed that the aromatic profiles of wines evolve within the same wine region—and this has always been the case. In recent years, however, climate change has had an influence, making the concepts of terroir and wine typicity "unstable" or at least "evolving." In short, we haven’t heard the last of this topic ! 😉

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Mickaël ARNOUX

Formateur technique viticulture, œnologie, agronomie et, sciences. Coordinateur technique viticole

2mo

Instructif, mais pourquoi angliciser de si qualitatifs articles?

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Bernard Portet

Agronomist & Winemaker

2mo

Very interesting! Thank you for your reflections!

Dominic D. Smith

Founder, Managing Director, Wine Consultant at Winetastery® | Landscape Designer, Horticulturist, Botanical Horticulturist, Dipl. Hort | Entrepreneur | First Responder

2mo

Very informative!

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