Brut, extra-brut, brut nature, sec, demi-sec: champagne dosage explained

Brut, extra-brut, sec, demi-sec… These words on the label describe neither the quality nor the vintage, but one thing only: the dosage, meaning the amount of sugar in the champagne. It is probably the single most useful — and most misunderstood — piece of information for choosing a bottle. Here is the full scale, from driest to sweetest, with what each term really means.
What is dosage?
Just before it is corked for good, a champagne goes through disgorgement: the yeast deposit left by the second fermentation is expelled. That small loss is topped up with the liqueur d’expédition (dosage liqueur) — a blend of wine and, most often, a little sugar. The dose of sugar added this way is the dosage, expressed in grams per litre (g/L).
One detail carries a lot of weight: the dosage balances champagne’s naturally high acidity. The less sugar there is, the more lively and taut the wine; the more there is, the more it comes across as round and generous. This is not a matter of quality, but of style and use.
The official scale, from driest to sweetest
The terms are governed by European regulations. Here is the exact order — and watch out for the classic trap: “sec” is not the driest, far from it.
| Term | Sugar (g/L) | Taste | Ideal for |
|---|---|---|---|
| Brut nature / non dosé / zero dosage | 0 to 3 (no added sugar) | Very dry, taut, mineral | Enthusiasts, aperitif, oysters |
| Extra-brut | 0 to 6 | Dry, precise | Aperitif, fish, fine dining |
| Brut | under 12 | The versatile balance | Any occasion (the standard) |
| Extra-dry (extra-sec) | 12 to 17 | Lightly dosed | Fruity aperitif, brunch |
| Sec | 17 to 32 | Noticeably sweet | Spicy dishes, poultry |
| Demi-sec | 32 to 50 | Distinctly sweet | Desserts, foie gras |
| Doux | over 50 | Frankly sweet (rare) | Pastries, end of meal |
The terms to know first
Brut is by far the most common: it is the “default” champagne, dry enough for an aperitif yet supple enough to accompany a meal. If in doubt, this is the safe bet.
Extra-brut and brut nature are gaining ground among enthusiasts and growers: with less sugar (or none at all), they reveal the wine “unadorned”, showing the terroir and the vibrancy. Brut nature, with no added sugar whatsoever, demands grapes of excellent ripeness — a demanding and very fashionable style.
At the other end, demi-sec and doux are the allies of dessert: served cold, they elevate a pastry or foie gras where a brut would taste sharp. Sec, despite its misleading name, is already distinctly dosed.
The trap to remember: on the scale, the order from driest to sweetest is brut nature → extra-brut → brut → extra-dry → sec → demi-sec → doux.
Dosage, grape variety, vintage: don’t confuse them
Dosage tells you nothing about the colour (white or rosé), the grape varieties (see our article on champagne grape varieties), or the year (vintage or not). A single house often offers a brut, an extra-brut and a demi-sec made from the same vines: only the dosage liqueur changes. For the bigger picture, our guide on how champagne is made puts each step in its place.
In short
- The dosage = the sugar added at disgorgement, in g/L.
- From driest to sweetest: brut nature, extra-brut, brut, extra-dry, sec, demi-sec, doux.
- Brut = the all-rounder; extra-brut / brut nature = the trendy dry styles; demi-sec / doux = the dessert wines.
- “Sec” is misleading: it is already a dosed champagne.
Curious which dosage level would suit you best? Take our taste quiz, browse the champagne glossary, or check out our tips for choosing and gifting a bottle.