What Makes Premium Olive Oil? How PONS Turns Quality Into Verifiable Science

by | Oct 30, 2026 | Food/Dining

Which Spanish extra virgin olive oil is considered the best? The answer now comes with documentation.

When importers and specialty distributors ask that question, the answer they can act on is a set of verifiable criteria. In the American specialty channel, the conversation starts with documentation: batch records, analytical results, harvest data and a clear chain of custody. Sensory quality remains the goal, and evidence is how a buyer confirms it before listing a product.

The Criteria That Define Extra Virgin Quality

European Union rules and the International Olive Council set the legal floor for the category: free acidity of 0.8% or below, a peroxide value of 20 mEq O2/kg or below, and a tasting panel that finds a median of zero defects and a fruity median above zero, assessed under the COI/T.20/Doc. 15 method. Those parameters mark where the extra virgin begins.

Buyers who need to stand behind a product in front of their own customers ask about the stages around the mill as well: when the olives were harvested, how long they waited before milling, at what temperature the oil was extracted and whether each lot has its own analytical file. Those answers turn a quality claim into something a distributor can verify and repeat.

How PONS Documents Quality From the Estate to the Bottle

PONS works from its own estate in Lleida, with around 500,000 olive trees across 300 hectares of high-density groves and 100 hectares of traditional groves. The company grows, harvests, mills, bottles and distributes its own oil, so each lot can be followed from the olive grove to the bottle.

Harvest takes place in windows by variety, from mid-September to late October: Lecciana first, then Arbequina, Koroneiki and Arbosana. Before each harvest, NIR analysis of whole olives (a 0.5 kg sample per field lot) measures acidity, moisture, fat content, polyphenols, ripeness and fruit health, and sets the optimal harvest point for that lot. The olives are then milled within 30 minutes of harvest in PONS’s own latest-generation cutting mills, built for cold extraction. Once the oil is produced, an in-house team of food science chemists analyzes every batch with liquid chromatography.

Data With a Named Method

PONS guarantees a minimum phenolic content, referenced to the official COI method used in its own laboratory: from 325 mg/kg in Arbequina, from 400 mg/kg in Lecciana and from 500 mg/kg in Koroneiki. The figures are stated as minimums because phenolic content varies with plot, harvest load, the time between field and mill, and malaxation conditions. Every lot is analyzed, and the guaranteed figure is the one that holds across the whole campaign.

A separate characterization of the phenolic profile of each variety is carried out with the Antioxidants Research Group at the Universitat de Lleida, led by Dr. Laura Rubió and Dr. Alba Macià, using UPLC-DAD-MS/MS, which quantifies each compound individually. The two methods measure differently, so their figures are not directly comparable. PONS is also listed in the official guide of the New York International Olive Oil Competition, an additional external reference point for buyers evaluating its production.

Five Questions That Make Quality Verifiable

Five questions can turn quality into something verifiable: when the olives were harvested, how long they waited before milling, how the oil was extracted, which method backs the published figures, and whether each lot comes with its own analytical file. When the producer can answer all five with data, the buyer has the evidence needed to decide with confidence.

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