Champagne labels contain a surprising amount of information once you know how to read them. Beyond the producer name and the style (Brut, Extra Brut, Rosé), there are regulatory codes, dosage classifications, village designations and vintage dates — each of which tells you something meaningful about what is in the bottle. A few minutes spent learning these basics will make you a significantly more confident buyer.
Producer Type Codes: NM, RM, CM and Others
Every Champagne label must carry a two-letter code identifying the type of producer, followed by a registration number. NM (Négociant-Manipulant) is the most common: a house that buys grapes or juice from growers and makes the wine itself — this covers all the major houses from Moët & Chandon to Veuve Clicquot. RM (Récoltant-Manipulant) identifies a grower who grows their own grapes and vinifies them — the source of most Grower Champagnes. CM (Coopérative-Manipulant) means the wine was made by a coopérative on behalf of members who grow the grapes. RC (Récoltant-Coopérateur) indicates a grower who grows the grapes but has the coopérative make the wine, then sells it under their own label. These codes appear in very small print, usually near the base of the front or back label.
Dosage Terms, Vintage and Grand Cru
The dosage category on the label — Brut Nature, Extra Brut, Brut, Extra Dry, Sec, Demi-Sec — tells you the sweetness level. A vintage date means the wine comes entirely from that single harvest year, with no blending of reserve wines. The absence of a vintage date means the wine is a Non-Vintage blend, designed for consistency. If the label states a village name followed by Grand Cru or Premier Cru, this refers to the Champagne classification system based on village quality ratings. Grand Cru villages — there are 17 — are considered the most prestigious sources of fruit. Look for mentions of specific parcels or lieu-dits on grower labels: these are vineyard-specific Champagnes that are among the most interesting expressions of terroir in the entire appellation.
