A fruit nobody eats raw

Quince is barely edible straight off the tree: hard, sour, and astringent enough to dry out a mouth in one bite. Cydonia oblonga isn't native to Spain either. It grew first in Asia Minor and the Caucasus, and reached the Iberian Peninsula with Greek and Roman traders; today the harvest still runs through autumn across Andalusia, Murcia and Valencia.[1] Cooked down slowly with sugar, that same unpromising fruit becomes carne de membrillo, the dense amber paste that sits on every Spanish cheese board.
Andalusia grows quince across several provinces, but one town south of the city of Córdoba built an entire local economy on it. Membrillo San Lorenzo, one of the two producers still trading there, describes Puente Genil as the paste's cradle, pointing to the area's climate as the reason quince does so well nearby.[2] That's a producer's own pitch rather than an independent ranking, but the industry that grew out of the claim is real enough to trace.
Córdoba has its own confectionery tradition too, the almond mazapán shaped in the historic centre's pastry shops, but that stays small-batch. What happened in Puente Genil scaled into something else.

1834: a merged town, a new confectionery

Puente Genil is a relatively young administrative creation. The town became a single municipality only in 1834, when two riverside settlements, La Puente de Don Gonzalo and Miragenil, were joined together, six years before its signature trade even started.[3]
In 1840, Rafael Rivas Pérez set up a confectionery in the newly merged town and built it around one fruit. The shop grew, over more than a century, into Membrillo El Quijote, the company whose name is stamped on tins of quince paste today.[4]
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From one shop to an industrial trade

By the late 19th century, membrillo confection stood out within Puente Genil's food industry,[5] part of a broader late-19th-century industrialisation that also built up flour, olive oil and orujo-oil production in the same period.[13] Rivas Pérez's shop no longer had the trade to itself.
San Lorenzo was one of many membrillo makers the town has had over the decades: in 1942, Lorenzo Estepa Aguilar founded, independently of Rivas Pérez's firm, the group of companies that became Membrillo San Lorenzo, one of the few still operating today.[6] Two decades later, El Quijote modernised production: in the 1960s, Miguel Chacón Rivas, who succeeded the founder, moved the company onto vacuum-sealed packaging that could survive a longer trip to market.[7] A century after Rivas Pérez's shop opened, Puente Genil had multiple producers in the trade and a product built to travel.
Timeline
  1. 1834

    Puente Genil formed

    Two river settlements, La Puente de Don Gonzalo and Miragenil, merge into one municipality.

  2. 1840

    El Quijote founded

    Rafael Rivas Pérez opens the confectionery that becomes Membrillo El Quijote.

  3. Late 19th c.

    Industrialisation

    Membrillo confection becomes the town's standout industry.

  4. 1942

    San Lorenzo founded

    Lorenzo Estepa Aguilar builds the group of companies that becomes Membrillo San Lorenzo.

  5. 1960s

    Vacuum packaging

    El Quijote adopts vacuum-sealed packaging, letting the paste travel further.

The plantation and the pairing that went global

In 1981, El Quijote incorporated as a limited company and made its biggest bet yet: a quince orchard it calls the largest of its kind in the world, more than 80,000 trees, held through two associated companies, one of them named Membrillos Extremeños, a hint that not every tree in that count is rooted in Puente Genil itself.[8] Whatever the exact geography, the investment locked in decades of raw material.
Membrillo San Lorenzo took a similar path on its own scale. The company now runs 20,000 m² of production facilities outside the town, a scale it says answers a market that keeps getting more demanding and more global.[9] Both firms left the shape of a single shop behind decades ago.
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What carried the paste beyond Spain wasn't the plantation alone. Manchego did more for the trade than any factory investment: the classic wedge-of-cheese-plus-paste plate is the reason quince paste travelled past Spain's borders at all, becoming shorthand for how the two are meant to be eaten together.[10] Visitors chasing that pairing don't need to detour to Puente Genil for it: Córdoba's own food tour puts Manchego and membrillo on the same plate a few streets from the Mezquita.

Puente Genil today: the arithmetic behind 'world capital'

Puente Genil itself has a population of around 30,000 and sits about 70 km from the city of Córdoba.[11] Set that beside what one factory alone produces there: El Quijote's Puente Genil site covers more than 26,000 m², employs sixty people, and turns out upward of 10,000 tonnes of quince paste every year.[12] A town smaller than several Córdoba neighbourhoods supplies cheese boards it will never see.
The 'world capital' claim in this article's own headline rests mostly on the producers' own figures rather than an independent industry census, worth remembering before repeating it as settled fact. What isn't really in dispute is the shape of the story: two of Puente Genil's many historical membrillo makers are still standing today, one tracing to Rivas Pérez's 1840 shop and the other founded independently in 1942, and a fruit nobody eats raw still defines a town most of Spain has never visited.

Before you go

Neither producer lists a public visitor programme on its own site. Confirm directly with El Quijote or Membrillo San Lorenzo before building a special trip to Puente Genil around a factory visit.
Córdoba itself carries a parallel confectionery inheritance worth comparing to Puente Genil's industrial one: the flaky, cabello-de-ángel-filled pastel cordobés has nothing to do with quince, but it comes from the same instinct, building a local identity around one stubborn, labour-intensive recipe. A cooking class in the city won't teach you to make membrillo, but it runs on the same patient, ingredient-first logic that built Puente Genil's industry one batch at a time.