italianoenglishfrançaisdeutschespañolportuguês
Language
Search
  • » News
  • » Viognier and Grenache blanc: a decisive harvest date

Viognier and Grenache blanc: a decisive harvest date

Impacts of ripeness

Viognier and Grenache blanc: a decisive harvest date

As part of their studies on global warming, in 2019 the Technical Department of Inter Rhone studied the impact of the harvest date on the sensory profile of Viognier and Grenache blanc. Differing levels of maturity among these varietals were studied, in order to determine the impact of ripeness on the final sensory profiles of the resulting wines. Setting the optimal harvest date is crucial for the future quality of the wines, taking into account technological maturity (balance acids and sugars), phenolic maturity (anthocyanin and tannin quality), and aromatic maturity (revelation of varietal aromas). One plot of Viognier and one plot of Grenache were used to form the basis of the study, with winemaking taking place in the experimental cellar of Inter Rhone.

Grapes of varying maturity were vinified separately, using a standard and identical protocol. Blind tasting was conducted by Inter Rhone’s expert jury, 8 months after vinification. The results clearly showed significant variation in organoleptic profile. In Viognier, the early harvest created an acidic wine, which was not very expressive and lacked roundness. Conversely, a late harvest gave the wine an aromatic profile, more expressive but heavier on the palate and lacking liveliness. The best compromise appears to be found in wine made from the September 6 harvest, which provided an interesting balance, freshness and aromatic complexity.

Grenache Blanc was more precisely affected by harvest date. The balance seems really different with only 7 days between harvests. The earlier harvest produced a more expressive wine, with more fruit notes, and significantly higher acidity. Wine from the later harvest was less fruity on the nose and the palate showed reduced acidity, reduced bitterness, an elevated fat element and more heat. For this grape, the technical maturity differences are low between the harvest dates, but the impact on the organoleptic profile is clear, with the earlier date producing a more interesting wine.

Obviously, sanitary and fermentation conditions remain important factors in the resulting wines; however, the importance of the correct date of harvest cannot be underestimated.

Published on 02/07/2021
Related sheets
    A new range of tannins to enhance and protect the identity of wines
    X-TAN, the line of high-tech tannins originated from natural mixtures that enhance the identities of the wines, grape variety and terroir of origin
    Published on:12/06/2022
    Pectinases and their applications in wine
    We are all familiar with pectins, those polysaccharides that give turgidity, firmness and compactness to plant tissues and walls, which protect the plant from external aggressions such as drought o...
    Published on:11/23/2022
    IVAS 2022 repository is now available
    A repository of 71 videos is available for purchase for two months only.
    IVAS 2022 provides a unique international platform for interchange between researchers dedicated to the different aspects of the chemistry of grape, wine and spirits production including topics suc...
    Published on:11/18/2022
    Respecting and enhancing wine identity
    Auroras®: the vision of VASONGROUP
    The union of two different and distant entities, which together generate something wonderful. The products of JUCLAS and Enologica Vason united to enhance the identity of wines
    Published on:11/09/2022
    Enzymatic analysis 4.0 + CIELab color analysis
    Come and try Smart Analysis at SIMEI in Milan
    DNAPhone invites you to SIMEI, the International Oenology and Bottling Machine Exhibition to be held in Milan from 15 to 18 November, to learn about and try Smart Analysis, the made in Italy platfo...
    Published on:11/07/2022
    Fourteen Years that Have Changed Wine Trade
    The WBWE will hold its 14th edition, becoming the crucial trade fair for the wine industry. The entire sector will be reunited in Amsterdam on the 21st and 22nd of November 2022
    Published on:11/07/2022
© All Right Reserved
ISSN 1826-1590 VAT: IT01286830334
powered by Infonet Srl Piacenza
- A +
ExecTime : 2,140625