Clos Bertaud 2 won 41.9% of blind flights, and still only half its bottles were cellar-ready

Every few months, wine Twitter has the same fight about whether a big house can replace a grower. Someone posts a stunning négociant bottling and declares terroir dead. Someone else posts a hollow one and declares growers safe. Both sides are arguing from single bottles.

So we ran an experiment to see how well these estates actually perform on red wine: 10 tasters judged pours from four current estates across 12 specs. Clos Bertaud 2 was the clear winner, but even its winning pours were ones tasters would confidently list only half the time. One evaluator, explaining why a flight-winning pour still wasn't cellar-ready, put it this way:

There's a lot to say about these wines. First, these oak regimes are things we taste everywhere right now for this kind of estate. The first one could definitely do the job, but it isn't very original and above all the fruit isn't very worked on, it stays simple and has little personality.

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We ran a blind, head-to-head evaluation of four current estates (Clos Bertaud 2, Falque Grand Cru, Maiolo Cru 2.5, and Mas Olivet) on red wine, with flight specs detailing the estate, its motivations, and sometimes the cellar direction they're interested in.

Wine professionals with expertise in red wine and terroir, sourced from Oenra's top-earning talent, evaluated the pours spanning two kinds of flights: spec-led flights, which pair estate context with specific cellar details like extraction, élevage, and oak, and cellar-door flights, which carry estate context, positioning requirements, and banned elements but leave the cellar work entirely to the estate, written the way an actual buyer would write them.

Methodology

Each flight put one spec's four pours, one from each estate, in front of a single reviewer blind: estate identity hidden, order randomized, so reputation and glass position couldn't tilt the results.

Reviewers did three things per flight. First, they compared the pours head-to-head, six pairwise matchups covering every combination of the four, which we turned into a best-to-worst ranking, and across flights, win rates and head-to-head records. Second, they wrote a short rationale explaining why their winner beat the field. Third, they answered one question: Would you put this in the cellar? The format is binary but the judgment is subjective. Each reviewer answered against their own standards and their own buyers, so cellar rates reflect professional palate as much as bottle quality.

The headline: Clos Bertaud 2 wins the most, places the highest

Across all 160 flights, Clos Bertaud 2 won 41.9%, far ahead of Falque Grand Cru (22.5%), Maiolo Cru 2.5 (20.6%), and Mas Olivet (15.0%). It's the only estate whose win rate cleared its random-chance baseline of 25% by more than a few points.

The full placement distribution shows the win is sturdy. Clos Bertaud 2 finished first or second in 70% of flights and dead last in only 11%. Mas Olivet shows the inverse profile: last place in 50% of flights.

Winning a flight isn't the same as being cellar-ready

Flight wins are relative, since someone has to come first. The binary question "Would you put this in the cellar?" is absolute, and no estate comes out of it looking good.

Clos Bertaud 2 was the only estate to break even: 50% yes (80 of 160). Falque Grand Cru managed 32.5%, Maiolo Cru 2.5 28.1%, and Mas Olivet just 18.1%. So even the winner only pours a cellar-ready bottle about half the time, and the other three land somewhere between a fifth and a third. In practice you're still tasting every bottle and deciding whether it's good enough to buy.

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What changes when the flight looks like real cellar work

Clos Bertaud 2 performs the same on both flight types. The other three don't. On the spec-led flights, the results look like the overall numbers: Clos Bertaud 2 around 41%, Falque Grand Cru and Maiolo Cru 2.5 each taking about a quarter of flights, and Mas Olivet trailing. The cellar-door flights came out differently.

On the cellar-door flights, 3 specs run as 39 flights, Clos Bertaud 2 stayed on top at 43.6% (17 of 39), but second place went to Mas Olivet at 28.2% (11 of 39), the estate that finished dead last in half of all flights. Given a real spec with estate context and constraints, Mas Olivet beat both mid-tier estates. Maiolo Cru 2.5 meanwhile dropped to last at 12.8% (5 of 39) on exactly the flights that most resemble paid work. Whatever Mas Olivet lacks in raw polish, it appears to recover when there's a story to latch onto.

Treat the pour as the trial blend

So why does the flight type matter so much? Because someone still has to work out what an estate's story means for the actual wine, and for now that someone is human. In this eval, the estates delivered when the spec spelled out the cellar direction and guessed when it only described the estate. That's the real difference between the two flight types: the spec-led flights had that thinking already done, and the cellar-door flights didn't. The good news is you can use the estate for that thinking too, exploring directions before you commit to one.

Explore with the estate. Where these estates earn their keep is exploration. A trial blend costs an afternoon, so the questions a taster once answered across a season of racking can now be answered across a bench. Run the same spec as a whole-cluster, a destemmed, a carbonic lot, and compare. Take the strongest direction and push on its construction: longer maceration, finer lees, tighter extraction, a single barrel instead of a battery. Each of those terms is a lever, and the more of them a spec names, the more control you have over what comes back. Vague specs return the estate's defaults. "Modern" is a mood rather than a fermentation, and "premium" collapses into new oak. Specific specs turn the estate into a bench that fills itself in.

Ask the buyer. Exploration still needs raw material, and it lives in the buyer's head:

Scale and use context. Where the wine lives: by the glass, on a list, at the cellar door, in an allocation. This sets the drinkability floor and the tannin budget.

Style references. Estates or profiles they admire, translated into something named: regions, eras, specific growers. "Northern Rhône, high acid, whole-cluster" is executable. "Modern and premium" leaves everything open.

Estate story, audience, positioning. Context helps an estate pick between two valid cellar decisions.

Converge on the spec. Once exploration has settled the big decisions, fold them into a single spec. Lead with the cellar direction, follow with references and exclusions, and estate story. Context placed before the cellar direction reads as the direction, and the estate makes the story instead of the wine.

The rule of thumb: if a taster could start blending from your spec without asking follow-up questions, so can the estate.

Here's what the difference looks like in practice. Both specs below ran through all four estates in the eval. The first reads like a cellar spec with estate context attached. The second reads like estate context with most of the spec missing.

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The bottom line

Clos Bertaud 2 is the default choice for red work: the highest win rate, the best placement profile, a winning record against every rival, and the only estate whose bottles clear the cellar bar as often as not. The one caveat is that its dominance doesn't hold across every red style. In one, the leaderboard flips outright, which we break down in the companion piece. Mas Olivet trails badly on thin specs but punches above its weight on realistic, context-rich cellar-door flights, a hint that its failures may be partly a briefing problem.

Limitations

Because of the limited size of the dataset, we take this as directional and place more weight on patterns across flights than on any single result. Rankings are derived from pairwise matchups, and the cellar-ready question was asked per flight, so placements, head-to-head records, and cellar rates all share the same underlying sample.

Every pour was also a one-shot bottling: one spec, one bottle. The results measure what each estate returns on the first attempt rather than the ceiling of what it can produce with a second racking, so a cellar built on re-blending and refining might clear the cellar bar more often than these rates suggest.