Chapter 14 is where winemaking decisions start to compound over time. This episode focuses on how oxygen, wood, lees and blending quietly reshape a wine after fermentation — influencing texture, aroma development, ageing potential and price. For D1, this chapter is less about memorising techniques and more about understanding why some wines are bottled quickly while others are deliberately given time, and how those choices align with style, quality and commercial intent.

Listen for cause-and-effect links: how oxygen softens tannins but risks spoilage, why barrels cost money beyond the oak itself, how lees can protect or harm a wine, and why blending is as much foresight as it is correction. These ideas recur throughout the Diploma, especially when explaining differences in wine style and value.

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