Demeter and Biodyvin: the two biodynamic certifications explained
In biodynamics, two certifications coexist in France: Demeter, an international label, and Biodyvin, a French label. Both certify practices that go beyond simple organic farming—vines worked according to lunar rhythms, plant-based preparations, and a holistic vision of the farm. But their requirements in the vineyard and the cellar are not identical, and choosing between them is not trivial. Here are the essential differences.
Biodynamics: A recap of the basics
Before comparing the certifications, it is necessary to understand what biodynamics encompasses. It is a form of enhanced organic farming, developed in the 1920s by the philosopher Rudolf Steiner, which considers the farm as an autonomous living organism. In viticultural practice, this translates into:
- No synthetic pesticides or fertilizers (like organic farming [AB], but with even more limited copper doses)
- Plant-based preparations (horn manure, horn silica, valerian, horsetail, and nettle teas, etc.) sprayed at specific times
- Respect for the lunar calendar for work in the vineyard and cellar (root, flower, fruit, and leaf days)
- The goal of farm autonomy: producing one's own compost and preparations
To understand the philosophy of biodynamics beyond the certifications, our article Biodynamics: New Age fad or excellence in viticulture? covers the topic in full.
Demeter: The international label
Demeter is the benchmark biodynamic certification worldwide, present in over 60 countries. In France, the organization Demeter France manages the accreditations.
Demeter requirements in the vineyard:
- AB (organic) certification required as a minimum base
- Mandatory use of biodynamic preparations (at minimum, BD 500 horn manure and BD 501 horn silica)
- Copper limitation of 3 kg/hectare/year (compared to 6 kg authorized in AB)
- Soil cultivation mandatory (no herbicides, no thermal weed killers)
- Farm autonomy encouraged (presence of animals, on-site compost)
Demeter requirements in the cellar:
- Total sulfur limited to a maximum of 70 mg/L for reds (compared to 100 mg/L in AB)—an intermediate limit between AB and natural wine charters
- List of authorized additives more restrictive than AB, but several additions remain possible (tannins, tartaric acid, selected yeasts under certain conditions)
- A Demeter cellar is not synonymous with a cellar free of additives—it is a framework, not a total prohibition
Biodyvin: The French winemakers' label
Biodyvin is a certification managed by the International Syndicate of Winemakers in Biodynamic Culture (Syndicat International des Vignerons en Culture Biodynamique), created in France in 1995. It is strictly viticultural—unlike Demeter, which covers all types of farms.
Biodyvin's requirements in the vineyard are very similar to Demeter's: AB as a base, mandatory biodynamic preparations, and copper limited to 3 kg/ha/year. The main difference lies in the management of oversight: Biodyvin is managed by a syndicate of winemakers, with peer-to-peer control, which creates a more communal culture.
In the cellar, Biodyvin does not have specifications as detailed as Demeter's regarding authorized additives—requirements focus primarily on the vineyard. In practice, many Biodyvin winemakers go further than the minimum requirements of the certification.
Demeter vs. Biodyvin: Which to choose?
From the consumer's point of view, both logos signal a serious biodynamic winemaker. The practical differences:
- Demeter is more international and better known for exports. Winemakers who sell significantly abroad (Germany, Switzerland, USA, Japan) often choose Demeter for its global recognition.
- Biodyvin is more rooted in the French wine community, with a trade-union and exchange dimension between winemakers that appeals to those who value the professional network as much as the certification.
- Some winemakers have both—which is costly but ensures recognition on both sides.
Neither guarantees a natural wine in the strict sense—the cellar remains partially regulated but not as strictly as the AVN or S.A.I.N.S. charters. To understand these stricter charters, our article AVN, S.A.I.N.S., and Nature & Progrès provides a comparison.
Certified biodynamics and BIB
Biodynamic wines certified by Demeter or Biodyvin are very well suited for the BIB (bag-in-box) format. Their richness in natural polyphenols (linked to the vitality of biodynamic soils) and their natural tannins often give them good longevity after opening. Explore our selection of biodynamic BIBs.
Frequently asked questions about Demeter and Biodyvin
Is a Demeter wine necessarily better than an AB wine?
Not automatically. Biodynamic certification attests to a more demanding approach in the vineyard—but the quality of the wine in the glass also depends on the winemaker's talent, the terroir, and the vintage. A great winemaker with AB certification can produce superior wines to a biodynamic winemaker who lacks the touch. Certification is a guarantee of a process, not a result.
How can I recognize the Demeter and Biodyvin logos on a label?
The Demeter logo is a stylized green leaf with the word "demeter" in lowercase. The Biodyvin logo represents a stylized grape cluster with "biodyvin" inscribed. Both often appear on the back label or at the bottom of the main label. To learn how to read all the information on a natural wine label, our article how to read a natural wine label guides you step by step.