What Is Dégorgement, and Why Do Champagne Collectors Track It?

Ask a serious Champagne collector for the vintage of a bottle and you'll get a straight answer. Ask for the dégorgement date, and you'll usually get a much longer one. For grower Champagne in particular, when a wine was disgorged can matter as much as the year the grapes were picked, and understanding why is the difference between buying Champagne casually and buying it like a collector.

What Dégorgement Actually Is

Dégorgement, or disgorgement, is the step where a Champagne producer removes the sediment that builds up during the wine's second fermentation in bottle. That sediment, mostly dead yeast cells, is what gives Champagne its complexity during lees aging, but it has to come out before the bottle is finished and sealed for sale.

The process itself is simple: the neck of the bottle is frozen, the plug of frozen sediment is popped out under pressure, and the bottle is topped up, traditionally with a mixture of wine and sugar called the dosage, before final corking. What happens next, or doesn't happen, is where things get interesting for collectors.

Why the Date Matters More for Some Producers Than Others

At most large Champagne houses, disgorgement is treated as a production step, not a marketing detail. Wines are disgorged, dosed, and released on a predictable schedule, and the exact date rarely appears on the label at all.

Grower Champagne works differently, and this is where dégorgement dates start to matter. Producers working with low or zero dosage, extended lees aging, and small parcel-specific cuvées are essentially handing the finished wine to you closer to how it tasted the moment it left the cellar. Without a heavy dosage to smooth things over, the exact point at which a wine was disgorged has a real, tastable effect on how fresh, developed, or textured it is. Two bottles from the same vintage, disgorged a year or more apart, can show meaningfully differently, sometimes different enough that collectors specifically seek out one dégorgement over another.

This is also why you'll see wines labeled things like "R.D." (récemment dégorgé, or recently disgorged), or coded with a specific dégorgement date or batch number on the back label or cork. It's the producer's way of telling you exactly how much bottle-aged development to expect.

Two Producers Where This Really Shows Up

Cédric Bouchard, Roses de Jeanne

Probably the clearest example in grower Champagne today. Every cuvée is single-vineyard, single-variety, and disgorged with zero dosage, so there's nothing to mask variation between batches. Bouchard's cuvées are typically labeled with a code combining the parcel and harvest year, like HL/r18 for La Haute Lemblée from the 2018 harvest, with the dégorgement date tracked and referenced separately by collectors and retailers. Because production out of any single parcel is tiny, each disgorgement run is essentially a one-time release. Once it sells through, the next available bottling will be a different dégorgement at a different stage of development.

Jacques Selosse

The producer most responsible for turning dégorgement into something collectors actively track in the first place. Anselme Selosse's back labels have historically carried detailed disgorgement dates and batch information for cuvées like Substance and Initial, a level of transparency that helped set the standard the rest of grower Champagne now follows. In recent years Selosse has shifted some of that detail onto scannable NFC chips rather than printing it outright, but the underlying idea, that the disgorgement date is information worth giving the collector, started here.

Other grower names worth knowing if you're going deeper into this world include Egly-Ouriet, Pierre Péters, Ulysse Collin, and Jérôme Prévost, all of whom farm small parcels, favor low dosage, and treat disgorgement timing as part of the wine's identity rather than an invisible production step.

Grower Labels vs. the Big Houses

This is really a philosophical difference as much as a technical one. Large houses like Krug and Dom Pérignon blend across many vineyards and often several vintages to hit a consistent house style year after year, and disgorgement has traditionally been treated as a manufacturing detail rather than something the label needs to disclose. Krug has moved toward more transparency through its Krug ID system, a code on the back label that can be looked up online for blend and disgorgement information, but you won't find the date printed outright the way you will on a bottle of Selosse or Bouchard.

Grower producers work in the opposite direction. With single-vineyard, often single-vintage wines and little or no dosage to smooth over differences between batches, the disgorgement date isn't a manufacturing footnote, it's close to the whole story of how the wine will taste. That's why growers print it, and why collectors ask for it.

HL/r18, Dégorgement 2022: A Closer Look

If you've specifically been searching for Cédric Bouchard's HL/r18 with a 2022 dégorgement, here's what that combination means. HL refers to La Haute Lemblée, a single walled Chardonnay parcel in Celles-sur-Ource planted on Kimmeridgian limestone, the same soil type that runs through Chablis. The r18 indicates the 2018 harvest. Dégorgement 2022 tells you this particular batch spent roughly four years on the lees before disgorgement, a long aging period even by grower Champagne standards.

Because production from this single parcel is so limited, availability moves fast and specific dégorgements don't repeat. If you're tracking this release, reach out directly and we can let you know what's currently available from Cédric Bouchard's allocation.

Frequently Asked Questions (FAQ)

What does dégorgement mean in Champagne?

Dégorgement, or disgorgement, is the process of removing sediment from a Champagne bottle after its second fermentation, immediately before final dosage and corking. It's a required step for every traditional-method sparkling wine.

Why do dégorgement dates matter for grower Champagne?

Because many grower producers use low or zero dosage and extended lees aging, the exact disgorgement date has a real effect on how fresh or developed the finished wine tastes. Collectors track it much like Burgundy collectors track a specific bottling.

What does "R.D." mean on a Champagne label?

R.D. stands for récemment dégorgé, or "recently disgorged." It signals that the wine spent an extended period on its lees and was disgorged shortly before release, a technique associated with producers like Bollinger as well as many grower Champagnes.

Explore Grower Champagne

Browse our Champagne collection, including Cédric Bouchard's Roses de Jeanne and Agrapart & Fils. For more on how grower Champagne differs from the major houses, see our guide to grower Champagne explained.