Order a clara in most of Spain and you can expect beer cut with something sweet and carbonated, usually lemon soda. Order the same word in Pamplona and you will get beer mixed with plain gaseosa instead, no lemon at all. In Navarra, a clara and a beer with lemon are not the same drink wearing different names. They are two separate orders, and asking for the wrong one gets you the wrong glass.
This matters because most English language coverage of Spain’s beer shandy treats clara as a single, settled recipe, interchangeable with the German radler or the British shandy. That flattens a real regional split that changes what shows up in front of you depending on which bar you’re standing in, from Madrid to Barcelona to the streets around the Plaza del Castillo. A visitor who has had a clara with lemon somewhere else in Spain and assumes the same applies in Navarra during San Fermin is working from the wrong rule.
This account draws on Spain’s own documented brand history for the soft drink that created the modern clara, the regional vocabulary tracked by Spanish food press and by bars themselves in the Basque Country and Navarra, and the current retail record from Spain’s largest domestic brewer.
What a Clara Actually Is
The name comes from the Spanish word for clear or light. Mixing beer with a pale, sweet, carbonated soft drink lightens the color of the glass and softens the bitterness of the hops, producing a visibly lighter pour than a straight caña. That is the entire idea behind the word: it describes what the mixer does to the beer, not a fixed ingredient.
The broader practice of cutting beer with a sweet mixer is older than Spain’s version and comes from more than one place at once. Germany’s best known account traces to the summer of 1922 in Deisenhofen, a small town outside Munich, when innkeeper Franz Xaver Kugler is credited with stretching his beer supply for an unexpectedly large crowd of visiting cyclists by mixing it roughly three parts beer to one part lemon soda. The drink took the name Radler, Bavarian dialect for cyclist. The idea itself predates Kugler’s tavern; German texts document beer cut with soft drinks as early as 1912, so Kugler most likely popularized an existing habit rather than inventing it from nothing. Britain has its own separate and older tradition entirely: the shandygaff, beer mixed with ginger beer, documented in print from 1853, with the shortened term shandy appearing by 1888. These are parallel traditions, not a single lineage that Spain’s clara simply copied.
Spain’s own version arrived later and through a specific commercial event, not as an import of either the German or British drink.
Spain’s Two Claras: One Word, Two Different Drinks
Beer became a genuinely popular everyday drink in Spain only in the early twentieth century, and there is evidence it was already being informally cut with lemonade and other cold drinks by then. But the mixed drink did not become a fixed, named bar order until a specific Spanish brand created the habit at national scale. La Casera, Spain’s first major national gaseosa brand, was founded on May 31, 1949, by three brothers, Francisco, Victor, and Felix Duffo Gonzalez. The first bottle came off the line in May 1950, an initial run of 1,417 one liter glass bottles, and the now recognizable house shaped crest and bottle design date to 1953. It was in the 1960s, once La Casera expanded into flavored variants including a lemon version, that mixing gaseosa with beer became a defined, everyday order across the country.
That national rollout did not standardize what the order actually contains. In Madrid, Andalucia, and the two Castiles, a plain clara is beer with unflavored gaseosa, and getting the lemon version requires specifying “clara con limon.” In large parts of Catalonia, Galicia, and Asturias, the word has always meant beer with lemon by default, with no separate plain version in common use. Spain’s largest domestic brewer, Mahou San Miguel, sells the packaged, pre-mixed version of this drink nationally, but notably markets it under the international name Radler rather than clara, including San Miguel Radler, Mahou Cinco Estrellas Radler, and an alcohol free San Miguel 0,0 Radler. The gap between the branded retail product and the bar order tells its own story: shelf packaging leans on a name shoppers recognize internationally, while the fresh pour at a bar tap keeps the older Spanish word.
Navarra’s Exception: Why Lejia and Pika Exist
This is where Navarra departs from most of the country, and where the standard shandy explainer falls apart. In the Basque Country, Cantabria, and Navarra, clara refers only to beer mixed with plain gaseosa. Beer with lemon is not a modified clara here. It is a completely different word. In Bilbao, the lemon version is ordered as a “pika.” In San Sebastian, it goes by “lejia.” A bar in San Sebastian’s own published guide to regional beer terms confirms this pattern directly, naming Cantabria, Navarra, and the Basque Country together as the region where beer with lemon takes these separate names rather than folding into clara as a variant.
The fragmentation goes further still and underlines how local this vocabulary really is. Tarragona and Castellon call beer with lemon “champu.” Mallorca has adopted the English word “shandy” itself, following decades of Anglophone tourism, replacing an older local term, “barretjat.” None of this is a simple two way national split. It is a genuinely local, city by city vocabulary, and Navarra’s rule, clara means gaseosa only, is one clearly documented piece of that map.
The practical result for Pamplona: order “una clara” during San Fermin and the safe, locally consistent expectation is beer cut with plain gaseosa, not lemon. Asking for it “with lemon” the way it might work in Barcelona does not reliably translate here. The clearest way to get a beer with lemon in the city if the local term isn’t familiar is to simply describe the ingredients directly to the bartender. Any of the old town’s classic beer halls will know exactly what a clara means locally, even when a visitor doesn’t.
Ordering One During Fiesta Week
The appeal of a clara during San Fermin is practical as much as it is a matter of taste. Its lower alcohol content than a straight caña makes it a reasonable choice across a long, hot fiesta day, one that for many runners and spectators starts at the txupinazo and stretches through an afternoon almuerzo in direct sun. It is not a drink built for an evening out. It is a daytime refresher, ordered by the round the same way a straight beer would be, and it sits alongside other lighter, session style choices fiesta drinkers reach for across a long day, including tinto de verano.
Spanish food press has also tracked a live shift inside the drink’s own culture. Directo al Paladar reported that lemon has been gaining ground over plain gaseosa as the preferred clara mixer nationally in recent summers, a preference that is still moving even in regions historically associated with the plain gaseosa version. The regional naming rules above describe where things stand today, not a static fact fixed decades ago.
Frequently Asked Questions
What is a clara in Spain?
A clara is beer mixed with a sweet, carbonated soft drink, traditionally in roughly equal parts, meant to lighten the beer’s color and soften its bitterness. What that soft drink actually is depends entirely on the region: in some parts of Spain it defaults to lemon soda, and in others, including Navarra, it defaults to plain unflavored gaseosa.
Is a clara the same thing as a radler?
They belong to the same general family of beer diluted with a sweet mixer, but they are not the same drink with two names. Germany’s radler has its own separate, well documented 1920s origin tied to the Deisenhofen tavern story, while Spain’s clara developed later and separately, tied to the domestic rollout of the La Casera gaseosa brand in the 1950s and 1960s.
What do you call beer with lemon in Navarra?
Not clara. In Navarra, the Basque Country, and Cantabria, beer with plain gaseosa is the clara, and beer with lemon goes by regional terms instead, such as pika in Bilbao or lejia in San Sebastian. Ordering “clara con limon” the way it works in Madrid or Barcelona does not reliably get the same result in Navarra.
Why is a clara popular during San Fermin?
Its lower alcohol content compared to a straight beer makes it a practical choice for drinking steadily through a long, hot festival day without building up the same alcohol load round after round, particularly during afternoon almuerzo sessions in direct summer sun.
Every article on the Encierro blog is authored or reviewed by active bull runners with direct experience in Pamplona.