Natural Wine vs Conventional: What's the Difference and Does It Matter?

The Rise of Natural Wine

Walk into any trendy wine bar in Brooklyn, East London, Copenhagen, or Melbourne, and you will find a list dominated by wines described as "natural," "low-intervention," or "minimal-addition." The natural wine movement has grown from a fringe countercultural phenomenon into a significant market force, with dedicated importers, retailers, wine fairs (RAW, Real Wine Fair), and a passionate community of producers and consumers.

But what does "natural wine" actually mean? Unlike "organic" or "biodynamic," the term has no legal definition in most countries. This ambiguity is both the movement's greatest strength — allowing diverse philosophies to shelter under one umbrella — and its greatest weakness, leaving consumers confused about what they are actually buying.

This guide unpacks the terminology, explains the real differences in the vineyard and cellar, and helps you decide what matters for your own drinking.

Defining the Terms

Conventional Wine

"Conventional" is a catch-all term for wine made using the full range of modern viticultural and enological tools. This includes:

In the vineyard:

• Synthetic pesticides, herbicides, and fungicides to control pests and diseases
• Synthetic fertilizers to enhance vine growth
• Mechanical harvesting (in many cases)
• Irrigation where permitted by law

In the cellar:

• Commercial cultured yeast strains selected for reliable fermentation and specific flavor profiles
• Acidification or de-acidification to adjust the wine's balance
• Chaptalization (adding sugar before fermentation) to increase alcohol in cool climates
• Fining agents (egg whites, casein, gelatin, bentonite) to clarify the wine
• Filtration to remove particles and microorganisms
• Sulfur dioxide (SO2) additions for preservation and microbial stability
• Oak alternatives (chips, staves) instead of barrels
• A wide range of permitted additives — the EU authorizes over 50 enological substances and processes

This does not mean conventional wines are "bad" or "industrial." Many of the world's most celebrated producers use some or all of these techniques. The vast majority of wine consumed globally — including many outstanding bottles — is made conventionally.

Organic Wine

Organic wine has a legal definition, though it differs between jurisdictions:

EU (since 2012):

• Grapes must be grown organically (no synthetic pesticides, herbicides, or fertilizers)
• A reduced list of permitted cellar additives
• Lower maximum sulfite levels than conventional wine (100 mg/L for reds, 150 mg/L for whites and rosés, compared to 150 mg/L and 200 mg/L for conventional)
• The label can state "organic wine"

US (USDA):

• "100% Organic" or "Organic": Made from organically grown grapes with no added sulfites
• "Made with organic grapes": Organically grown grapes, but sulfites up to 100 ppm are permitted

In practice, organic viticulture means:

• Cover crops and natural predators instead of herbicides and pesticides
• Copper and sulfur sprays as the primary fungicides (both are naturally occurring but not without environmental concerns — copper accumulates in soil)
• Composting and natural fertilizers
• Typically more labor-intensive and costly than conventional farming

Notable organic producers: Chapoutier (Rhône), Bonterra (California), Emiliana (Chile), Cullen (Australia).

Biodynamic Wine

Biodynamic farming is based on the agricultural philosophy of Rudolf Steiner, outlined in a series of lectures he delivered in 1924. It encompasses organic practices but adds a holistic, almost spiritual dimension:

Core principles:

• The farm is treated as a self-sustaining ecosystem
• Specific preparations made from herbs, minerals, and animal organs (e.g., cow horn filled with quartz, yarrow flowers in a stag bladder) are applied to the vineyard and compost in precise quantities
• Planting, pruning, and harvesting follow a calendar based on lunar and celestial cycles
• Biodiversity is encouraged — animals, cover crops, and hedgerows are integrated into the vineyard

Certification: The two main certifying bodies are Demeter (the most widely recognized, established in 1928) and Biodyvin.

Biodynamics is controversial. Skeptics dismiss the preparations as pseudoscience, while proponents — including some of the world's most respected winemakers — report measurably healthier soils, more resilient vines, and wines of greater expression and vitality.

Notable biodynamic producers: Domaine de la Romanée-Conti (Burgundy), Domaine Zind-Humbrecht (Alsace), Domaine Leroy (Burgundy), Nikolaihof (Austria), Felton Road (New Zealand), Benziger (Sonoma).

Natural Wine

Natural wine is the least defined and most contested category. A working definition used by many in the movement:

In the vineyard:

• Organic or biodynamic farming (though not always certified)
• Hand-harvested

In the cellar:

• Fermentation with indigenous (wild) yeasts only — no commercial yeast strains
• No or minimal sulfite additions (many natural producers aim for less than 30 mg/L total SO2; some add none at all)
• No chaptalization, acidification, or other chemical adjustments
• No fining or filtration (or very minimal)
• No added enzymes, tannins, or other winemaking additives
• No new oak (in most cases; some producers use older, neutral barrels)

The philosophy: Natural winemakers aim to let the wine "make itself" — to express the grape, the vintage, and the place with as little human manipulation as possible. The winemaker's role is more custodian than creator.

In 2020, France became the first country to create a legal framework for natural wine, introducing the Vin Méthode Nature label. To qualify, wines must be made from organically certified grapes, fermented with indigenous yeasts, and produced without any of 33 listed additives, with sulfites limited to 30 mg/L.

Notable natural wine producers: Marcel Lapierre (Beaujolais, often considered the godfather of the movement), Pierre Overnoy (Jura), Frank Cornelissen (Etna), Arianna Occhipinti (Sicily), Gut Oggau (Austria), Les Caves de Pyrène importers, Cos (Sicily), Domaine de la Tournelle (Jura), Jean-Pierre Robinot (Loire).

What Actually Tastes Different?

This is the question most wine drinkers care about. The honest answer: it depends.

Characteristics often associated with natural wine:

Cloudiness or haze: Without fining and filtration, natural wines are often not perfectly clear. This is cosmetic and does not affect quality.

Funk: Some natural wines display aromas described as "funky" — barnyard, cider, cheese rind, mouse (mousiness). These come from Brettanomyces yeast or other microorganisms that would be suppressed by higher SO2 levels. Opinions are sharply divided: some find these aromas add complexity and character; others consider them faults.

Cider-like or kombucha-like flavors: Particularly in whites and rosés made with skin contact ("orange wines"). Extended maceration with wild fermentation can produce tannic, textured wines with flavors very different from conventional equivalents.

Volatility: Low sulfite levels can allow volatile acidity (VA) to rise, producing a vinegary edge. At low levels, VA adds lift and energy; at high levels, it is a clear fault.

Pétillance: A slight natural spritz from residual CO2, common in young natural wines bottled without filtering. This usually dissipates with airing.

Freshness and drinkability: At their best, natural wines have a lively, vibrant energy — a sense of life and movement in the glass. Proponents call this quality "digestibility" and argue that lower sulfites and the absence of additives make these wines physically easier to drink.

Bottle variation: Without the stabilizing effect of sulfites and filtration, natural wines can vary from bottle to bottle. One bottle may be transcendent; the next, from the same case, may be flawed. This unpredictability is part of the charm for devotees and a frustration for skeptics.

When you cannot tell the difference

Many organic and biodynamic wines are indistinguishable from conventional wines in a blind tasting. This is because the cellar practices — not just the farming — determine how the wine tastes. A wine made from organically grown grapes but fermented with cultured yeast, fined, filtered, and dosed with a standard amount of SO2 will taste like... a well-made wine. The farming may produce healthier vines and grapes, but the cellar processes mask differences that might otherwise be apparent.

The Sulfite Debate

Sulfites (sulfur dioxide, SO2) are the most contentious topic in the natural wine conversation. Here is what the science says:

What sulfites do:

• Prevent oxidation (browning, loss of fresh fruit character)
• Inhibit unwanted microbial activity (acetobacter, brettanomyces)
• Preserve color and aroma over time
• Allow wines to age and travel safely

Sulfites and health:

• Approximately 1% of the population has genuine sulfite sensitivity, which can trigger asthmatic symptoms. This is a real medical condition.
• The "sulfite headache" attributed to red wine by many consumers is likely caused by other compounds (histamines, tyramine, tannins, or simply alcohol and dehydration), not sulfites. Dried apricots, for example, contain far more sulfites than wine.
• Red wines actually contain less SO2 than whites because tannins provide some natural antioxidant protection.

Maximum permitted sulfite levels (EU):

• Conventional red wine: 150 mg/L
• Conventional white/rosé wine: 200 mg/L
• Organic red wine: 100 mg/L
• Organic white/rosé wine: 150 mg/L
• Vin Méthode Nature: 30 mg/L
• Many natural winemakers add zero sulfites

The trade-off: Low or zero sulfite wines can be brilliantly alive and expressive, but they are also more fragile. They require careful temperature-controlled shipping and storage, and they have shorter drinking windows. A zero-sulfite wine left in a warm car for an afternoon may be ruined. A conventionally made wine would likely survive.

The Environmental Argument

This is where the case for organic, biodynamic, and natural farming becomes most compelling, regardless of how the wine tastes:

• Soil health: Organic and biodynamic vineyards consistently show greater microbial diversity, better soil structure, and more earthworm activity than conventionally farmed vineyards.
• Biodiversity: Eliminating synthetic pesticides and herbicides allows insects, birds, and native plants to thrive in and around vineyards.
• Water quality: Reduced chemical runoff protects local waterways and aquifers.
• Carbon sequestration: Healthy soils with high organic matter sequester more carbon than degraded soils.
• Worker health: Eliminating synthetic chemical sprays reduces exposure risks for vineyard workers.

However, the environmental picture is not entirely straightforward:

• Organic farming relies heavily on copper-based fungicides (Bordeaux mixture), and copper accumulates in soil, potentially reaching toxic levels after decades of application.
• Biodynamic preparations require animal products, raising questions for those concerned with animal welfare.
• Lower yields in organic/biodynamic farming mean more land may be needed to produce the same volume of wine.

Practical Advice for Consumers

If you are natural-curious:

Start with established producers: Marcel Lapierre Morgon, Arianna Occhipinti SP68, Gut Oggau wines, or anything from Frank Cornelissen are good entry points that showcase what natural wine can be at its best.

Find a good natural wine shop: Staff at specialty natural wine shops are usually passionate and knowledgeable. Tell them what you normally drink and ask for recommendations.

Serve natural wines slightly cool: A slight chill tames any funky edges and enhances freshness. This applies to reds as well as whites.

Give them air: Many natural wines open up dramatically with 30–60 minutes of breathing. That initial funk often blows off to reveal beautiful fruit and complexity underneath.

Accept some variability: Part of the natural wine experience is embracing unpredictability. Not every bottle will be transcendent, but the highs can be extraordinary.

If you prefer conventional wines:

That is entirely legitimate. Many of the world's greatest wines — Bordeaux First Growths, Grand Cru Burgundy, top Napa Cabernets — use conventional cellar techniques even when farming organically. The use of cultured yeast, judicious sulfites, and fining does not make a wine artificial or inferior. It makes it reliable and age-worthy.

The middle ground:

Many outstanding producers farm organically or biodynamically but use conventional cellar techniques selectively. This pragmatic approach — sometimes called "low-intervention" winemaking — produces wines with the vitality of careful farming and the stability of sound winemaking practice. Producers like Domaine de la Romanée-Conti, Alvaro Palacios, Nikolaihof, and Felton Road exemplify this philosophy.

Does It Matter?

Yes, but perhaps not in the way the debate is usually framed. The quality of farming — whether the land is cared for sustainably and the grapes are grown with attention — matters more than any label or certification. Many excellent conventional producers farm responsibly without seeking organic certification. Many certified organic wines are mass-produced and unremarkable.

What matters most is the intent and skill of the producer. A great winemaker working with healthy grapes from well-tended vines will make compelling wine regardless of which philosophical camp they belong to. Drink what tastes good to you, support producers whose values align with yours, and stay curious. The wine world is big enough for all of these approaches.