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What are the different grape varieties used to make Sauternes wine?

Quick answer

Sauternes is made from three white grapes: Semillon, Sauvignon Blanc and Muscadelle. Semillon dominates, with almost every vintage containing at least 70 percent, Sauvignon Blanc comes second and adds acidity, and Muscadelle is a small extra. The exact blend changes by estate and vintage, so check the producer's notes.

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In this article
  1. What grapes are used to make Sauternes?
  2. What does each grape add?
  3. What is the usual blend of Sauternes?
  4. How does noble rot make Sauternes sweet?
  5. How should you choose a bottle?
  6. How do you serve it?

What grapes are used to make Sauternes?

Sauternes is a sweet white wine from the Bordeaux region of France, made from white grapes only. The main grapes are Semillon, Sauvignon Blanc and Muscadelle. A fourth grape, Sauvignon Gris, is grown in tiny amounts and rarely matters in the blend.

What does each grape add?

Grape Typical role
Semillon The main grape. Makes up the bulk of the blend and sets the style.
Sauvignon Blanc Second in importance. Usually blended in for acidity and structure.
Muscadelle A small share, grown in minor amounts. Seldom defines the wine.

What is the usual blend of Sauternes?

One buyer’s guide says almost every vintage contains at least 70 percent Semillon, and that Sauvignon Blanc rarely outweighs it. Beyond that there is no single recipe. Each estate sets its own proportions, and they shift with the harvest, so one bottle may be almost all Semillon while another has noticeably more Sauvignon Blanc. The back label or the producer’s website is the best place to look.

How does noble rot make Sauternes sweet?

The sweetness comes from a mold called Botrytis cinerea, often called noble rot. The mold concentrates the sugar in the juice left in the grapes, and the resulting wines are sweet but balanced by acidity. Harvesting happens in several passes through the vineyard so pickers can take only the affected grapes. The number of passes depends on the vintage, and in difficult years picking can stretch over 50 to 60 days.

How should you choose a bottle?

  • If you prefer fresher, brighter dessert wines, look for estates or vintages that mention a higher share of Sauvignon Blanc.
  • Almost every vintage is mostly Semillon, so a bottle that mentions more Sauvignon Blanc is the one that stands out.
  • If you only want a glass or two, ask your shop whether a half bottle is available.

How do you serve it?

Most sources suggest serving it chilled but not ice cold, roughly 8 to 12 degrees C (46 to 54 degrees F), in small glasses. Foie gras and blue cheese are the classic matches, and sweet desserts such as creme brulee or lemon tart also suit it. It can be enjoyed on its own too. Once opened, keep it in the fridge and taste it before each pour.

People also ask

What grapes are in Sauternes?

Semillon, Sauvignon Blanc and Muscadelle, with Semillon the main grape. Sauvignon Gris is grown in very small amounts.

Is Sauternes mostly Semillon?

Yes. One buyer's guide says almost every vintage contains at least 70 percent Semillon, though each estate sets its own blend.

Why is Sauternes so sweet?

Noble rot (Botrytis cinerea) concentrates the sugar in the grapes before they are picked.

General information only, not medical advice. If you have a health condition or are pregnant, ask your doctor before changing what you drink.

Sources

  1. Jeroboams: A guide to the Sauternes wine region and the Semillon grape, read 5 Nov 2026
Written by Drinks Type Editorial Team · Published Jun 17, 2023 · Updated Nov 5, 2026
About · How we verify this · Editorial policy · Corrections

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