Merlot for WSET: what to expect when you study it
Merlot is more planted in Bordeaux than Cabernet Sauvignon and is the star of Pomerol. This is an orientation; the regional drill belongs in your course materials and our app.
What WSET asks you to know
At Level 2, recognition: early-ripening, plumper than Cabernet, softer in tannin, dominant on Bordeaux's Right Bank.
At Level 3, you're expected to articulate why Merlot leads on the Right Bank but plays a supporting role on the Left, and why the same grape behaves so differently across regions.
The framework
Three things carry most of the marks:
- Early-budding, early-ripening. Merlot finishes before Cabernet, which is what makes it work on cooler clay-limestone Right Bank soils where Cabernet often underripens. The cost: vulnerability to spring frost and early-season weather.
- Thinner-skinned, larger-berried than Cabernet. Less tannin, more body, less colour. Different role in the blend.
- Bordeaux is two stylistic poles. Pomerol is dense, plush, often 80%+ Merlot on iron-rich clay subsoils. Saint-Émilion is more varied, with limestone-plateau elegance and Cabernet Franc influence.
Where it shows up
Three poles to know:
- Bordeaux Right Bank (Pomerol, Saint-Émilion, satellites). Reference.
- Washington State (Columbia Valley, Walla Walla). Continental, structured, serious. Often considered the most credible New World Merlot.
- Italy. Coastal Tuscany — Bolgheri DOC and Super Tuscan blends. Masseto is 100% Merlot.
Also worth placing: Chile (the historical confusion with Carmenère, clarified by DNA testing in the 1990s) and California (the post-Sideways shake-out, with serious Napa and Sonoma still in production).
How it shows up in tasting
A blind Merlot typically reads: medium to deep ruby, medium-plus acid, soft to medium-plus tannin, medium-plus to full body, with plum and dark cherry as the fruit core. Climate modulates: moderate gives plum / fruitcake / chocolate edges; warm gives black plum / blueberry / sometimes prune.
What to do next
Pair with Cabernet Sauvignon for WSET for the Bordeaux blend logic, and read Bordeaux for WSET for the Left/Right Bank contrast.
FAQ
Is Merlot easier to grow than Cabernet? Easier in some ways (ripens earlier), harder in others (frost vulnerable, prone to coulure and rot).
Why is Pomerol so prized? Iron-rich clay, small appellation, decades of focus on terroir-driven Merlot.
What is the difference between Saint-Émilion and Pomerol? Pomerol is more uniformly Merlot-dominant on clay; Saint-Émilion is more varied with Cabernet Franc playing a bigger role.
Why did California Merlot decline? Multiple factors, including over-planting in poor sites and the 2004 Sideways effect. Premium Napa Merlot continued.
Merlot vs Carmenère? Different grapes. Chilean vineyards historically confused them; DNA testing clarified.