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After a claim, we confirm by emailEverything here comes from public sources — award lists, certification registers, the territory inventories. The rest of the story — the family, the grove, the real age of the trees, this year's lab sheet — only the mill can tell, and it is the part buyers bid on.
Etern is made in Reus, in Catalonia, from Farga olives picked off millenary trees in the Territori del Sénia, the 27-municipality area straddling Catalonia, the Valencian Community and Aragon around the Sénia river, which the FAO listed in 2018 as a Globally Important Agricultural Heritage System for its ancient olive groves.
The oil is bottled under the Aceite Farga Milenaria guarantee mark, and the mark's conditions are exact. Fruit must come from non-transplanted trees of Olea europaea L. 'Farga' whose trunk circumference exceeds 3.50 metres measured 1.30 metres from the ground, each carrying an identification number and georeference in the inventory of millenary olive trees kept and updated by the association of municipalities of the Taula del Sénia. The finished oil must reach extra virgin grade, with acidity no higher than 0.6 per cent and a peroxide value no higher than 12 milliequivalents of oxygen per kilo.
By the producer's account the territory holds close to 5,800 such trees, 96 per cent of them Farga, of which around 1,700 are registered as productive and about 800 currently give oil. Picking runs through October and November, only exceptionally into December, and is done entirely by hand: the spread of the trees and the fruit's resistance to detachment rule out machines. Olives go to the mill the same day in rigid 25-kilo crates and are extracted below 27°C on a line kept for millenary fruit. The oil is filtered and bottled at 250, 500 and 700 millilitres, in a sheath of braided Chamaerops humilis palm.
From the public record: eternoliveoil.com · fao.org
Where the borders of Valencia, Catalonia and Aragón meet, twenty-seven municipalities keep a shared register of trees old enough to predate the borders themselves.
The Taula del Sénia territory spans fifteen Valencian municipalities, nine Catalan and three Aragonese, from coastal Vinaròs to Beceite and Valderrobres in the Aragonese hills. A tree earns its place on the register once its trunk measures more than 3.50 metres in perimeter at 1.30 metres height. The Mancomunitat Taula del Sénia and Asociación Territorio Sénia have run the count since 2008-09, dated by Professor Antonio Prieto of Madrid's Polytechnic University. The catalogue has grown with every survey: 4,080 trees in the first count, 5,767 kept current, 6,358 in the press consensus now circulating, and claims of over 7,000 at the loosest. FAO named the territory a Globally Important Agricultural Heritage System in 2018.
The concentration sits overwhelmingly in a handful of towns. Ulldecona alone holds 1,524 catalogued trees, the largest concentration in any single municipality. Canet lo Roig has catalogued 1,115, more than the 760 people who live there. La Jana counts 966 across roughly fifty trees per square kilometre, the highest density in the territory. Numbers fall away after that: Traiguera 589, Cervera del Maestre 219, down to three specimens at Peñarroya de Tastavins, the highest-altitude trees in the register.
Two groves stand as open-air museums. The Museu Natural de l'Arión in Ulldecona holds thirty-five millennial trees on a hectare beside the Via Augusta, among them La Farga de l'Arión, an 8.03-metre trunk attributed to a planting around 314CE and held to be the oldest attributed tree in Iberia. The Museu Natural del Pou del Mas in la Jana keeps twenty-one trees with free access, including La Farga del Pou del Mas, attributed to roughly 833CE.
The territory has come to dominate AEMO, Spain's annual contest for monumental olive, since Ulldecona's Farga de l'Arión won in 2007. Sénia trees have taken the title again in 2011, 2014, 2016, 2018, 2021, 2024 and 2025, eight wins in total, more than any other territory has managed. Traiguera's Olivo de Sinfo, on the Via Augusta itself, added a separate honour in 2019: Recomed's best monumental olive of the Mediterranean.
Fourteen to seventeen producers hold the Farga Milenaria mark, working around 700 monumental trees under rules fixing acidity at or below 0.6, audited by Norma Agrícola in Valencia. A further 349 guarantee-mark trees stand outside the core territory, in Alcora, Amposta, Figueroles, Masdenverge and Sant Mateu.
A lot from the Sénia carries its tree's catalogue number, GPS position and trunk perimeter on the dossier, and, where the miller holds the Farga Milenaria mark, a sworn acidity figure traced to that one still-standing trunk.
A producer account takes a minute — name, mill, region. We attach this profile the same day.
Lab numbers, tree references, harvest dates, a photo — the tap-through form asks only for what buyers pay for.
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