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Wine Aroma Profiles of a Chardonnay Wine Aged in Four Different Oak Types
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An large (n=42) untrained but experienced group of winemakers was used to produce the wine aroma profiles of a Chardonnay wine1 aged for 10 months and stirred once weekly for four months, in four different oak types2 sourced from the same cooper (Seguin Moreau: American oak U stave plus toasted heads, French, Russian and Napa coopered American). Analysis of intensity ratings given by assessors who were reproducible in repeat assessments of the wines showed that the American oak U stave barrel with toasted heads produced wines with greater coconut, vanilla, toast, butter, in-mouth texture, and overall oak character than did the other treatments (Figure 1). The degree of fruit displayed in the wines was inversely related to the overall degree of oak character. Despite there being some differences in the levels of important oak impact compounds between the French and Russian oaked wines, their sensory profile was perceived to be similar.
1Base Wine Analysis
. The band-aid like 4-ethyl phenol and the spicy 4-vinyl phenol were not detected in any wine.