What Makes a Wine Sustainable?

When the Michelin inspectors extended their attention across the whole of Florida this year and pinned a Green Star to Fat Beet Farm Kitchen and Bakery in Tampa, they were not rating a plate of food. They were rating a way of living with the land. The Green Star is Michelin's quiet second category, the one that rewards a restaurant for its ethics rather than its cooking: where the vegetables come from, and whether the kitchen takes more from its corner of the world than it gives back. It is a strange and hopeful thing, a guide famous for hedonism turning to ask a farmer's question. And it left me wondering, on a July afternoon in Umbria with the cicadas going, what the equivalent gesture would be for a bottle of wine. What, exactly, would we be rewarding?

What Does a Green Star Actually Reward?

The word sustainable has been worn smooth by use, the way a coin loses its face after enough hands. By now it means so many things that it risks meaning nothing. But the Green Star is useful precisely because it is not a slogan; it is an inspector standing in a kitchen, asking where things came from and where they go. That is a physical question, not a marketing one. It has a right answer that can be walked to on foot.

A wine, though, is harder to inspect than a kitchen. By the time a bottle reaches a sommelier's hand, everything that made it sustainable or not has already happened, out of sight, a year or three years or a decade earlier, in a field the buyer will never see. The finished wine does not carry a receipt. This is the difficulty at the center of the whole conversation: the ethic lives in the vineyard, but the wine is what arrives at the table, and the distance between those two places is where most of the confusion, and most of the marketing, tends to gather.

Is Organic the Same as Biodynamic?

Start with the vocabulary, because the vocabulary is where buyers are most often misled. Organic farming, at its simplest, is a discipline of subtraction: no synthetic pesticides, no systemic herbicides, no soluble chemical fertilizers. It is a set of things a grower agrees not to do, verified by certification, and it is a genuine and demanding commitment. Sustainable, as an official Italian designation, is broader and more managerial, concerned with water use and carbon and the health of the whole farm as a system. Both are worth having. Neither, by itself, tells you what a wine will taste like.

Biodynamic is the stranger cousin, the one that makes rationalists uneasy. It begins where organic ends and keeps going, treating the vineyard not as a plot to be managed but as a single living organism with its own metabolism. There are the famous preparations, the cow horns packed with manure and buried over winter, the sprays timed to the moon. Some of it reads like folklore, and I will not pretend otherwise. But strip away the cosmology and what remains is a farm forced to pay ferocious attention: to observe, to close its own loops, to feed the soil rather than the plant. The certification that matters here is not a logo on a back label; it is the daily practice the logo is supposed to stand for, and the two are not always the same thing.

This is the distinction serious buyers eventually arrive at. Certification is a floor, not a ceiling. It tells you what a grower has promised to avoid. It cannot tell you how awake they are in the vineyard at five in the morning, or whether the estate would farm this way even if no one were watching and no premium were on offer. For that you have to look past the paperwork to the practice, and past the practice to the person.

Can You Taste an Ethic?

Which brings me to a hillside in Montefalco, and to Emma Di Filippo, who runs the family estate her parents built into one of Umbria's most quietly radical farms. The Di Filippo vineyards are certified biodynamic, but the detail I keep returning to is not on any certificate: the rows are worked by horse. A draft horse compacts the soil far less than a tractor, leaves the microbial life beneath the vines undisturbed, and moves at the speed of a person who is actually looking. Geese patrol for insects and weeds. The farm feeds itself. None of this is theater. It is simply what sustainability looks like when you follow the word all the way down into the dirt.

The grape they grow this way is Sagrantino, Italy's most tannic red, a variety so structured it can seem almost forbidding in careless hands. Biodynamic farming does not soften Sagrantino; nothing softens Sagrantino. What it does is lend the fruit a kind of transparency, so that the wine tastes of a specific place and a specific season rather than of technique. The Di Filippo Montefalco Sagrantino 2018 DOCG earned a 95 from James Suckling, and the score is worth noting, but it is not the point. The point is that the ethic and the pleasure are not in tension here. The wine is better because of how it is farmed, not in spite of it.

I have written before about the mechanics of how Di Filippo farms, the horses and the geese and the buried horns, and I will not repeat that here. Nor will I retrace the Florida natural-wine moment that Giulia mapped so well. What interests me now is the connective tissue: a Green Star in Tampa and a horse-plowed row in Montefalco are answers to the same question, asked in different rooms of the same house.

What Are We Really Certifying?

There is a temptation, when sustainability becomes fashionable, to treat it as a feature, a bullet point that raises a wine's standing the way an oak regime or a high altitude might. That is the wrong frame. A wine is not more virtuous because it is biodynamic; it is more itself. Farming that refuses shortcuts produces fruit with nothing to hide behind, and a sommelier tasting blind will not find a moral flavor in the glass so much as a clarity, a sense that the wine is telling the truth about where it grew. You can find that truth in the wines of Montefalco more reliably than in most appellations, because the growers there have never had the option of hiding behind volume.

The estates worth a wine director's attention are the ones for whom sustainability was never a strategy. Di Filippo makes roughly six thousand bottles of this Sagrantino a year and holds Southeast exclusive distribution through us, which means it will never end up everywhere. It was farmed this way before the word became fashionable and will be farmed this way after the fashion passes. That constancy is the real thing the Green Star gestures toward, and the thing no label can fully capture: not a claim, but a habit; not a certificate, but a life arranged around the land.

So I keep coming back to the inspector in the Tampa kitchen, asking where the vegetables came from. It is the oldest question there is, and the most radical one available to us now. Somewhere in Umbria this evening a horse is being led back to its stable, the rows behind it turned and breathing, the Sagrantino thickening on the vine in the last of the light. No one is watching. That is exactly the point.