Ask an English-language travel site about vermut de grifo in the Basque Country or Navarra and you’ll get the impression it’s a regional custom, poured from taps up and down the Casco Viejo the way pintxos come standard at every bar. That isn’t accurate. Draft vermouth, poured straight from a keg instead of a bottle, is overwhelmingly a Madrid format nationally, and in Pamplona it survives at essentially one address.
Getting this wrong matters if you’re planning a night out around it. A visitor who walks into an old-town bar expecting vermut de grifo as a matter of course will usually get a bottle poured over ice instead, which is not the same drink, not the same texture, and not the point. The one tap Pamplona is actually known for pours a global Italian brand, not the Navarra-made vermouth that international judges rated the best in the world in 2024. Those are two different bottles of vermouth entirely, and only one of them is Navarra’s own.
What follows is drawn from Navarra regional press coverage of the specific bar in question, a national Spanish media roundup of the country’s best tap-vermouth addresses, and hospitality-trade sourcing on why bars pour vermouth from a keg at all, cross-checked against each other rather than repeated from a single travel-blog source.
What “De Grifo” Actually Means
Vermut de grifo, also called vermut de barril, is vermouth dispensed straight from a tap connected to a keg or pressurized dispenser, rather than poured from a bottle behind the bar. The format took hold in Spanish bars and taverns in the early twentieth century, well after vermouth itself had arrived from Italy and taken root in Spain through Reus, in Catalonia, where Joan Gili registered the city’s first vermouth trademark in 1892 and more than thirty producers eventually built the town’s reputation as the country’s vermouth capital.
The reason bars bother with a keg system instead of just opening bottles comes down to freshness. Vermouth is a fortified, aromatized wine, and like any wine it starts losing character once it’s exposed to air. A keg or pressurized dispenser limits that oxygen exposure far more than an open bottle sitting on a bar top for days, which is the standard rationale the hospitality trade gives for installing a tap system in the first place: less oxidation, a longer usable life once the container is opened, and less glass to store and dispose of. Whether or not a given bar’s tap vermouth tastes meaningfully fresher than its bottled version depends on how carefully it’s kept, but the logic behind the format is the same logic that keeps draft beer on tap instead of exclusively in bottles.
Serving is simple and consistent wherever the format shows up: a glass over ice, a slice of orange, a stuffed olive dropped in without having to ask. Some bars add a splash of soda from a siphon on request; most don’t unless you ask for it.
That stuffed olive is never a free garnish either. Aceitunas in a Pamplona bar are ordered and paid for like everything else on the counter, a distinction that surprises visitors used to the free-tapa custom farther south.
The Format Is Madrid’s, Not Navarra’s
The clearest evidence that vermut de grifo is not a native Basque or Navarra custom is who actually gets credited with it. A national Spanish media roundup of the country’s best tap-vermouth bars, published in early 2025, opens by calling vermouth “la bebida típica de Madrid” (Madrid’s characteristic drink) for the aperitif hour, and its list of five standout addresses proves the point: two bars in Madrid (one of them known for the “yayo,” a house mix of vermouth, soda water, and gin), one in Barcelona operating since 1927, one in Sevilla with a 160-year run recognized by the city as a protected traditional establishment, and one genuine outlier in Getxo, in the Basque Country near Bilbao, where a family-run tavern pours its own secret-recipe artisanal vermouth on tap in four varieties and refuses to mix it into anything.
That Getxo bar matters here because it proves tap vermouth isn’t simply a Madrid import wherever it shows up outside the capital. Somewhere in the Basque Country, it’s a genuinely homegrown product. Navarra’s own version, and Pamplona’s specifically, is a different story, and not the same kind of exception.
No Pamplona or wider-Navarra address appears on that national list. That’s not an oversight born of the capital’s press ignoring the regions; it reflects how thin the actual tap-vermouth footprint is around the encierro route compared to how thick it is in Madrid.
Pamplona’s One Address: Vermutería Río
Pamplona’s reputation for vermut de grifo rests almost entirely on a single bar. Vermutería Río, on Calle San Nicolás in the Casco Viejo, opened in 1963 as a modest tavern under Joaquín Barberena. Roberto Irurzun and Roberto Recasens took over in 1998, and the business relaunched under its current vermutería concept at its present address, Nos. 15 to 17 on the same street, in January 2015. Javier Preboste later joined as a third owner.
Its signature pour is the “Martini de grifo,” Martini vermouth drawn from a dedicated tap rather than a bottle. Two independent pieces of Navarra press, several years apart, describe that tap in nearly identical terms: one of the few Martini taps that exist anywhere in Spain. That phrasing is the tell. A setup local journalists repeatedly flag as rare is not evidence of a widespread regional custom. It’s evidence of one bar doing something unusual enough to be worth writing about every time.
It’s also worth being precise about what’s actually flowing out of that tap. Martini is a globally distributed Italian brand, made by Martini & Rossi, not a Navarra product. That’s a different bottle entirely from Oro Nómada, the vermouth made in Cordovilla, a village just outside Pamplona, that won the Great Gold distinction at the 2024 Catavinum World & Wine and Spirits Competition, the only vermouth in that competition to take the top award, a story told in full in the site’s coverage of la hora del vermut. Navarra’s real claim to vermouth excellence sits in that bottle, not in the tap at Río. If you want the region’s own award-winning vermouth, you’re ordering it from a shelf, not a spout. Vermutería Río’s own site confirms the bar’s focus remains its pinchos and bar-counter culture, with the Martini tap as one signature among several, not a house-made regional vermouth program.
How to Actually Order It in Pamplona
If tap vermouth specifically is what you’re after in Pamplona, Vermutería Río on San Nicolás is the address, and the Martini de grifo is what you ask for. Outside that one bar, expect old-town bars to serve vermut from a bottle poured over ice with the same orange-and-olive garnish, which is a perfectly authentic way to drink it locally, just not the tap format specifically. Bar Gaucho, open on the same streets since 1968, is a solid example of that ordinary bottled version done well.
Order “un vermú” at the bar rather than reading “vermut” off a menu if you’re speaking rather than pointing. The late-morning to early-afternoon window, before the main lunch service, is when it’s actually meant to be drunk, which puts it in the same protected-timeslot category as Pamplona’s rules around when to order a cortado: both drinks have a specific hour locals reserve for them, and both get misread by visitors who treat them as available on demand. Pairing the vermut with a pincho at the bar, standing rather than seated, is closer to how it’s actually consumed than treating it as a stand-alone drink at a table.
Frequently Asked Questions
What does “vermut de grifo” mean?
It means vermouth served straight from a tap connected to a keg or pressurized dispenser, rather than poured from a bottle. It’s also called vermut de barril (barrel vermouth). The format is valued mainly for staying fresher once opened than a bottle exposed to air on a bar top.
Is vermut de grifo a Basque or Navarra tradition?
Not primarily. National Spanish coverage identifies it as Madrid’s characteristic format, with strong outlying examples elsewhere, including one genuinely artisanal Basque version near Bilbao. In Pamplona specifically, it’s concentrated at one bar, Vermutería Río, rather than spread across the Casco Viejo.
Where can I get vermut de grifo in Pamplona?
Vermutería Río, on Calle San Nicolás in the Casco Viejo, is the address most associated with it, thanks to its Martini tap, independently described by Navarra press as one of the few of its kind in all of Spain. Most other old-town bars serve vermouth from the bottle.
Why is draft vermouth considered better than bottled?
The hospitality-industry rationale is reduced oxidation. A keg or pressurized dispenser limits the vermouth’s exposure to air compared to an open bottle, which can extend how fresh it tastes once it’s been opened. It’s the same basic logic that keeps beer on tap rather than exclusively bottled.
Every article on the Encierro blog is authored or reviewed by active bull runners with direct experience in Pamplona.