The Crisis of 2010, the Bell That Rings at Hail & the Wine That Must Be a "Never Miss"
In Viñaspre, a hamlet beneath the Sierra Cantabria mountains in Rioja Alavesa, Roberto Oliván farms 16 hectares of organic vineyards across 30 small plots at 620 metres — making wines of maturity and freshness, structure and elegance, that have become a benchmark for the new generation of Rioja growers. The name Tentenublo comes from the ringing of bells used to ward off hailstorms: "Tente, nublo" — "Stop, threatening cloud."
Origin — The 50-Cent Grape, the Crisis & the 3,500 Bottles That Changed Everything
Roberto Oliván was not born into wine royalty. He was born in 1982 in Viñaspre, a tiny hamlet in the municipality of Lanciego, Rioja Alavesa — a place of fewer than a hundred souls, where the Sierra Cantabria mountains rise to the north and the Ebro valley stretches to the south. His family had vineyards — five hectares that belonged to his mother and his uncle — but they were not winemakers. They were grape growers. His mother worked in a factory in Logroño. His uncle worked in a factory in Vitoria. And Roberto, from the age of 18, tended the vines on weekends, selling the grapes to larger bodegas in the area. He studied agricultural engineering at university. He worked as a freelance consultant for wineries in Somontano and Txakoli. He was, by all appearances, a competent young technician with a future in the Spanish wine industry.
Then, in 2010, the economic crisis arrived in Viñaspre. The grape buyers announced that they would pay 50 cents per kilo — half of what Roberto had received the year before. And half of what it cost him to produce. "Imagínate, la mitad de lo que veníamos cobrando." Imagine — half of what we had been earning. The math was brutal: it cost 60 or 70 cents to produce a kilo of grapes, and the market was offering 50. For a young man who had been farming his family's vines since he was a teenager, this was not merely an economic problem. It was an existential one.
Roberto's response was not to protest, not to petition, not to wait for the market to recover. His response was to make wine. He rented a space in the old cooperative El Collado in Laguardia — a cluster of small garage wineries that would later incubate projects like Guardianes del Reyno, Basilio Izquierdo, and Magaña. He harvested his family's grapes. He made 3,500 bottles. And he said to his mother and his uncle: "Vamos a probar a ver qué pasa." Let's try and see what happens. The first vintage was 2011. The wine was called Tentenublo — a word from the local dialect that describes the ringing of bells used to drive hail clouds away from the vineyards. The label, designed by Sergio Aja of Calcco, showed a cartoon bell chasing a cartoon cloud — playful, defiant, and unmistakably personal.
What happened next was not part of any plan. The wines sold. Then they sold more. Then distributors called. Then restaurants called — from modest wine bars to three-Michelin-starred establishments. Within a few years, Tentenublo had grown from 3,500 bottles to 55,000–60,000 bottles in good vintages. The tax authorities, suspicious of a winery whose turnover had jumped from €30,000 to €200,000, sent an inspector. He found real barrels, real activity, real wine. Roberto had not created a phantom. He had created a project. And now, 15 years later, he is one of the most respected winemakers in Rioja — not because he sought fame, but because he refused to accept 50 cents for a kilo of grapes.
The Place — Viñaspre, the Sierra Cantabria & the Replanos of Limestone Marl
Viñaspre is a hamlet in the municipality of Lanciego, at the eastern end of the Sierra Cantabria mountains in Rioja Alavesa. It sits at approximately 620 metres above sea level — high for Rioja, where much of the production occurs at 400–500 metres — with some plots reaching up to 700 metres. The landscape is defined by replanos — tableland areas of distinctive limestone marl and sandstone soils that give the wines their unmistakable mineral character and their capacity for ageing. The climate is a convergence zone: Mediterranean warmth from the south, Atlantic coolness from the north, and the constant wind that sweeps down from the Sierra Cantabria, keeping the vines naturally healthy and aerated. It is a place of extremes moderated by altitude — the kind of terroir that demands patience and rewards devotion.
Thirty Plots, One Philosophy
Roberto farms approximately 16 hectares spread across more than 30 small vineyard plots around Viñaspre and Lanciego — a patchwork of tiny parcels that he has assembled over 15 years, starting with his family's five hectares and gradually acquiring "scraps" of vines that nobody else wanted. The plots range from 0.4 hectares to 2 hectares, from 15-year-old vines to centenarian plants, from 400 metres to 700 metres elevation. Each parcel is vinified separately — a practice that distinguishes Tentenublo from the volume-blending tradition of industrial Rioja. Roberto knows each plot intimately: its soil, its exposure, its wind patterns, its yield fluctuations. And he bottles many of them separately, creating a range of single-vineyard wines that express the micro-terroirs of Viñaspre with a precision that has earned comparisons to Burgundy.
Organic Certified, Biodynamic Practices
Tentenublo has been certified organic since the 2020 vintage — a formal recognition of practices that Roberto had been following for years. The farming is deeply manual and deeply observational: pruning by hand, ploughing by tractor when necessary, canopy management according to the needs of each vine, and a refusal to use synthetic chemicals. Biodynamic preparations are used in some parcels, though Roberto is not dogmatic about certification. The key principle is respect for the natural cycle — understanding that the vineyard is an ecosystem, not a factory, and that the best wine comes from vines that are allowed to express their place rather than being forced into a standardized template. The result is vines that are naturally healthy, deeply rooted, and capable of producing grapes of exceptional concentration even at modest yields.
The Wind, the Hail & the Bell
The constant wind from the Sierra Cantabria is one of the defining features of Viñaspre's climate. It keeps the vines aerated, reducing fungal pressure and allowing Roberto to farm without heavy chemical intervention. But the wind also brings hail — the ancient enemy of the Rioja grower. The name Tentenublo comes from the village practice of ringing bells to drive hail clouds away from the vineyards — a ritual of protection that has been performed for centuries. The label, with its cartoon bell chasing a cartoon cloud, is not merely playful. It is a declaration of vulnerability — an acknowledgment that winegrowing in this place is a negotiation with forces beyond human control. The bell rings. The cloud may or may not stop. And the wine, regardless, is made.
The Grapes — Rioja's Indigenous Core
The estate is planted to the classic varieties of Rioja Alavesa: Tempranillo — the dominant red, structured and aromatic; Garnacha — the secondary red, juicy and floral; Viura — the traditional white, fresh and mineral; and Malvasía — the aromatic white, perfumed and complex. But Roberto also works with lesser-known varieties that have survived in his old vineyards: Calagraño, Garnacha Gris, Monastrell, and others that appear in small percentages in his field blends. A distinctive feature of Tentenublo's reds is the inclusion of white grapes — often 10% or more Viura and Malvasía — a traditional Rioja practice that Roberto revived to add what he calls a "chaotic" sensation to the center of the palate: originality, complexity, and a lightness that balances the power of Tempranillo.
Winemaking — Maturity and Freshness Must Go Hand in Hand
Roberto Oliván's winemaking philosophy can be distilled into a single, unwavering conviction: "Maturity and freshness must go hand in hand." This is not a compromise. It is a geographical truth — the consequence of farming at 620 metres on limestone marl in a climate that is both Mediterranean and Atlantic. The grapes ripen fully, developing the phenolic maturity and sugar concentration that give the wines their structure. But the altitude, the wind, and the cool nights preserve the acidity that gives the wines their freshness. The result is wine that is ripe but not overripe, structured but not heavy, powerful but not ponderous. Roberto has never been tempted to make lighter, greener wines, nor has he ever pursued the overripe, extracted style that dominated Rioja in the 1990s and 2000s. His path is the middle way — but it is a middle way of enormous tension.
All fermentations are spontaneous, with indigenous yeasts, in open stainless steel tanks. Roberto does not use selected yeasts, temperature control, or enzymatic additions. The extraction is gentle — traditional punch-downs of the cap, never pump-overs, never aggressive manipulation. The reds are aged in a mix of vessels — 500-litre French oak barrels (mostly second and third use), concrete tanks (increasingly important in recent years), and stainless steel. The key is not the vessel but the balance between maturity and freshness — a balance that Roberto has maintained consistently since 2011, even as his equipment has evolved from basic destemmers and tanks to more refined tools.
Roberto's style has always been the same, even as his methods have sharpened. "My style has always been about maturity and freshness; the two must go hand in hand." He is deeply suspicious of fashion — of the "lightness" trend that he sees as a second homogenisation of taste, replacing the "200% oak" era of the 1990s with a new conformity of greenness. "Now you see people making 'Burgundy style' wines in Albacete, Galicia, Ribera del Duero and Rioja. We're in the middle of a second homogenisation of taste." His response is to make wines that are unmistakably from Viñaspre — wines with structure, with ageing potential, with the capacity to last more than 10 years in bottle. A 2011 Tentenublo, opened at the winery's 15th anniversary, was "glorious." A 2013 El Abundillano and a 2013 Paredes, tasted at the same celebration, were "stunning."
The whites follow a similarly precise path. The Tentenublo Blanco is a blend of Viura and Malvasía, barrel-fermented and aged in French oak — a wine of remarkable precision and mineral depth. The Xérico Blanco (when produced) includes Viura and other indigenous whites, fermented and aged to express the limestone soils of its parcel. And the San José — a revolutionary cuvée from a 1952 vineyard — combines 60% white grapes (Viura and Malvasía) with 40% Tempranillo, all fermented with stems, creating a wine of extraordinary vibrancy and originality. Roberto was, notably, one of the first in Rioja to add white varieties to red blends — a practice rooted in tradition but abandoned by the modern industry, which he revived to enhance aromatic complexity and palate freshness.
The Wines — From the Village Tentenublo to the Single-Vineyard Escondite del Ardacho
Tentenublo produces a focused, tiered range that moves from village wines to single-vineyard expressions — all made with the same philosophy of maturity and freshness, all vinified separately by parcel, and all designed to age. The range is not large, but it is deep: each wine is a different conversation with the same landscape, the same grapes, and the same unwavering intention.
Tentenublo Tinto
Red — Village Wine — Viñaspre & LanciegoThe flagship and most popular wine of the estate — a village-level red that captures the essence of Viñaspre and Lanciego. A blend of 80% Tempranillo, 10% Garnacha, and 10% white varieties (Viura and Malvasía) from eight sites all above 600 metres. Hand-harvested, with 60% destemmed grapes. Fermented spontaneously in open stainless steel tanks with gentle punch-downs. Aged for 9 months in French oak barrels — mostly 500L, mostly second and third use. The result is a wine of remarkable freshness, elegance, and persistence — deep cherry color, complex bouquet of dried herbs, smoky notes, and black fruits, with fine-grained tannins and a finish that speaks of limestone and altitude. The label shows the cartoon bell chasing the cartoon cloud — the hail warning that gives the wine its name. ~13–14% ABV. ~13,600–20,000 bottles.
Tentenublo Blanco
White — Village Wine — Viñaspre & LanciegoA barrel-fermented white that redefines what white Rioja can be. A blend of Viura and Malvasía — and potentially other indigenous white varieties — from the estate's high-altitude parcels. Fermented and aged in French oak barrels, with regular lees stirring to build texture and complexity. The wine is multi-layered, mineral, and precise — a fascinating interpretation of the white Rioja tradition that avoids the oxidative, heavy style of the past while maintaining the depth and ageing potential that great white Rioja demands. Notes of white peach, citrus zest, almond, and a smoky, limestone-driven finish. Bottled without excessive manipulation. A wine that improves with age and challenges every assumption about what Viura can achieve. ~12–13% ABV. ~5,400 bottles.
Xérico
Red — Village Wine — ViñaspreA fruit-driven village red that pays homage to four generations of the Oliván family. The label is a family tree in black-and-white photographs — each vintage features a different ancestor, creating a visual archive of the people who farmed these vines before Roberto. The wine comes from a 2-hectare site on limestone soils — Roberto's first parcel — planted with Tempranillo and a little Viura in a traditional field blend. The style is juicy, accessible, and deeply personal — red cherry, pomegranate, Mediterranean herbs, and a mineral backbone that speaks of the replanos. It is a wine that connects the drinker not merely to a place but to a lineage — to the grandfather whose photograph appears on the bottle, and to the generations that will follow. ~13% ABV. ~8,000 bottles.
Custero
Red — Cosechero Style — ViñaspreA cosechero-style wine made from young vines planted with a carefully selected massal mix from Roberto's own vineyards — a deliberate attempt to revive the character of traditional Rioja wines. The blend is Garnacha (60%), Tempranillo (20%), and a mix of other varieties including Calagraño, Garnacha Gris, and even Monastrell — a field blend that would have been typical in old Rioja before the standardization of the 1980s and 1990s. Low viticultural intervention, spontaneous fermentation, and a light touch in the cellar. The result is a wine that is juicy, fresh, and deliberately rustic — not polished, not corrected, but alive. A wine for those who understand that the cosechero tradition is not a step backward but a path forward — a way of making wine that honors the vineyard's natural diversity rather than erasing it. ~12.5–13% ABV. Limited production.
Escondite del Ardacho "El Abundillano"
Red — Single Vineyard — ViñaspreThe most celebrated wine in the Escondite del Ardacho range — named after a native lizard species that appears dressed as a human on the label, a playful nod to the biodiversity of Viñaspre. Sourced from El Abundillano — a plot of less than one hectare at 590 metres elevation, with vines aged 91 to 106 years old. The blend is 91% Garnacha, 9% Tempranillo, and a touch of Malvasía — an extremely juicy, vibrant expression of old-vine Garnacha on limestone marl. Fermented spontaneously with indigenous yeasts, aged in 500L second-use French oak barrels for 9 months without racking. The result is a wine of extraordinary purity and pleasure — wild strawberry, pomegranate, rose petal, and a mineral spine that carries the wine through a long, saline finish. One of Roberto's favorite "living rooms" — the vineyard where he feels most at home. ~13–14% ABV. ~1,600 bottles.
Escondite del Ardacho "Las Guillermas"
Red — Single Vineyard — LanciegoSourced from Las Guillermas — a 0.6-hectare plot in Lanciego at 400 metres elevation, with 66-year-old vines planted to Tempranillo and Viura — the latter making up to 40% of the final blend. This is one of the most original and age-worthy wines in the Tentenublo range — a red dominated by white grapes, fermented and aged to express the unique character of this lower-altitude, warmer site. The wine shows remarkable acidity and great cellaring potential — dark cherry, wild herbs, smoked paprika, and a structure that belies its moderate alcohol. The high proportion of Viura adds a layer of citrus freshness and floral perfume that transforms the wine from a standard Tempranillo into something unmistakably singular. A wine for collectors who understand that the best Rioja is not always the most conventional. ~13% ABV. ~2,075 bottles.
Escondite del Ardacho "Veriquete"
Red — Single Vineyard — ViñaspreSourced from Veriquete — a 0.41-hectare sandy plot in Viñaspre at 595 metres elevation, with vines aged 50 to 110 years old. The blend is 80% Tempranillo, 10% Garnacha, and 10% white varieties (Viura and Malvasía) — a classic Rioja field blend from a single, exceptional site. 60% of the grapes are destemmed; the rest are fermented whole cluster. Aged in 500L French oak barrels for 9 months. The result is a wine of freshness, subtlety, and captivating minerality — the sandy soils of Veriquete giving the wine a texture and a precision that is distinct from the limestone-driven Abundillano or the warmer Guillermas. A wine that demonstrates Roberto's commitment to terroir-specific expression — each plot, each soil, each vine age producing a wine that could not be replicated anywhere else. ~13% ABV. ~1,700–2,175 bottles.
Escondite del Ardacho "San José"
Red — Single Vineyard — LanciegoThe newest addition to the Ardacho range — first released with the 2022 vintage, limited to just 995 bottles. Sourced from a beautiful vineyard in Lanciego planted in 1952 — vines that are 70 years old and still producing fruit of extraordinary concentration. The blend is revolutionary: 60% white grapes (equal parts Viura and Malvasía) and 40% Tempranillo — a reversal of the usual red-white ratio that turns the traditional Rioja blend on its head. All grapes are fermented with their stems — a technique that adds tannic structure, herbal complexity, and a savory, almost Burgundian character. The result, even in a warm year like 2022, is expressive, vibrant, and utterly original — a wine that proves Roberto is not merely reviving tradition but reinventing it. White grapes are not an afterthought here. They are the dominant voice. And they sing. ~12.5–13% ABV. 995 bottles.
Los Corrillos
Red / White — Single Parcels — ViñaspreA small, limited-production range made from the additional plots that Roberto has gradually purchased in Viñaspre — parcels that do not fit into the existing Ardacho or village wine categories but are too good to blend away. The wines are made on a similar price and quality level to the Ardachos — single-parcel expressions of specific sites, vinified separately, and bottled in tiny quantities. The exact composition shifts with the vintage and the parcel, but the common thread is terroir specificity: each wine is a portrait of a particular piece of Viñaspre's volcanic-limestone landscape. Some may be red, some may be white, some may be blends. All are extremely limited and highly sought after by collectors who follow Roberto's work parcel by parcel. Extremely limited.
Legacy — The "Never Miss", the 15-Year Rollerscoaster & the Shake-Up That Is Coming
Tentenublo matters because Roberto Oliván has achieved something that is rarer than critical acclaim or high scores: he has become a "never miss" — a producer whose wines are consistently personal, consistently recognizable, and consistently true to their place. In a region that is increasingly caught between the homogenizing pressure of big corporations and the fleeting fashion of social media, Roberto has carved out a third path — neither traditionalist nor modernist, but timeless. His wines are not trying to be Burgundy. They are not trying to be traditional Rioja. They are trying to be Viñaspre — and in that specificity, they have found a universality that transcends trend.
Their legacy is agricultural. By farming 16 hectares across 30 small plots — from 400 metres to 700 metres, from 15-year-old vines to centenarian plants, from limestone marl to sandy soils — by practicing organic viticulture with biodynamic elements, by vinifying each parcel separately, and by refusing to expand beyond the 50,000–60,000 bottles that he can manage with his own hands, Roberto has created a model for Rioja viticulture that is closer to Burgundian parcelism than to Rioja's industrial tradition. He has shown that the future of Rioja lies not in volume but in site specificity — in the understanding that each plot, each soil, each vine age produces a wine that is worth bottling on its own.
Their legacy is oenological. The Tentenublo Tinto — 80% Tempranillo, 10% Garnacha, 10% white varieties, 9 months in 500L French oak — is a village wine of such consistency and character that it has become a benchmark for the new Rioja. The El Abundillano — 91% Garnacha from 91–106-year-old vines on less than one hectare — is a single-vineyard wine that rivals the great Garnachas of the world. The San José — 60% white grapes, 40% Tempranillo, whole cluster, 995 bottles — is a wine that reinvents the Rioja blend by making white grapes the dominant voice. And the Tentenublo Blanco — barrel-fermented Viura and Malvasía — is a white wine of such precision and ageing potential that it challenges every assumption about what white Rioja can be. These are not wines made for scores. They are wines made for time — wines that last more than 10 years in bottle, as the 2011, 2013, and 2014 vintages have already proven.
And their legacy is philosophical. Roberto's conviction — that maturity and freshness must go hand in hand, that wine should have structure because the soil demands it, that the second homogenisation of taste (the "lightness" trend) is as dangerous as the first (the "200% oak" era), and that the best way to survive in a volatile market is to be a "never miss" rather than a fad — has resonated with a generation of younger growers who are looking for a model that is neither corporate nor ephemeral. His transparency, his refusal to be pushed around, his insistence that "a good person will admit they bought grapes or that they cut corners" — these are not marketing positions. They are moral positions. And in a wine world that is increasingly cynical, they matter.
From the 50-cent grape crisis of 2010, to the 3,500 bottles of 2011, to the 55,000 bottles of today, from the old cooperative El Collado to the winery in Lanciego, from the weekend vine-tender at 18 to the father who hopes his children might follow, from the txakoli that is no longer made to the wines that will outlast their maker, Tentenublo is a testament to what happens when a young man from a hamlet decides that the best response to a crisis is not surrender but wine — wine that rings like a bell, that chases the hail cloud, that stops the threatening sky. The bell has rung. The cloud has paused. And the wine, 15 years later, is still glorious.