Episodes 13–15 form a complete, distinction-grade walkthrough of Rutherglen Muscat as assessed in the WSET Diploma D5 Fortified Wines unit.

Episode 13 covers climate, grape growing, and vineyard foundations, explaining how warm continental conditions, diurnal cooling, long dry autumns, late harvesting, canopy shading, and old vines enable extreme natural sugar concentration while preserving Muscat aromatics.

Episode 14 focuses on winemaking, maturation, and blending, detailing early fortification, extraction from shriveled grapes, maturation in very old oak under warm conditions, the role of evaporation and oxidation, vessel size and warehouse position, and blending strategies used to balance freshness and complexity.

Episode 15 brings the series together through classification, style, and wine business, covering the Muscat of Rutherglen Network’s four-tier classification system, style and quality differences across categories, pricing and maturity at release, and the category’s small-scale, premium-focused market.

All content is drawn directly from the WSET Diploma D5 specification and is designed for exam recall: cause-and-effect logic, quality differentiation, and commercially relevant detail — without shortcuts or oversimplification.

If you’re preparing for D5, these episodes are intended to be listened to together as a set.

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