What is early-harvest olive oil and why is picual from Jaén so prized?

Early-harvest olive oil is extra virgin olive oil made from olives picked while they are still green, before they fully ripen and turn purple. Harvested weeks earlier than conventional oil, usually between late October and November, it produces a greener, more intense oil with pronounced bitterness, peppery notes, and a much higher load of antioxidants (polyphenols). This is exactly the style of oil produced by the Olivar de los Cerros, a picual olive grove on the southern hills of Jaén, in Andalusia, Spain.

What does early-harvest olive oil actually mean?

Early harvest, also called green picking, means bringing the harvest forward to the moment the fruit is just starting to change color. At that stage the olive has a lower fat yield (less oil per kilo of fruit), but the oil it produces is clearly higher in quality and stability.

• Green picking: olives are harvested before ripening, not gathered from the ground.
• Lower yield, higher quality: more fruit is needed for the same amount of oil.
• More polyphenols: natural antioxidants that drive bitterness, pungency, and shelf stability.
• Fast pressing: the fruit is milled within hours of picking to avoid oxidation.

At the Olivar de los Cerros, the olives are pressed at the estate's own mill, with milling completed in under six hours from the moment the fruit arrives. That short window between tree and mill is one of the factors that most influences the final result.

Why is picual olive oil from Jaén so prized?

Jaén is the largest olive-growing region in the world, and picual is its signature variety. Picual oil is valued for three main reasons:

1. Stability: it is one of the most oxidation-resistant olive oils, giving it a longer shelf life and better tolerance to heat in the kitchen.
2. Distinctive flavor: aromas of fresh grass, tomato plant, and olive leaf, with balanced bitterness and pepperiness that signal freshness.
3. Antioxidant content: early-harvest picual is consistently among the oils richest in polyphenols.

The terrain of the Jaén hills, with sloping groves and dryland soils, also shapes the oil's character. The Olivar de los Cerros sits on old dryland plots across those hills, planted by the Quesada family's grandparents back in the 1950s.

How is an organic olive grove like the Olivar de los Cerros farmed?

The estate has held organic certification since 2016 and follows practices designed to protect the soil and minimize chemical inputs. Its main methods are:

• Cover crops between rows: grass is allowed to grow between the rows of olive trees to hold the soil, slow erosion on slopes, and build up organic matter.
• Deficit drip irrigation: only the essential amount of water is applied at key moments, rather than heavy watering, saving water and concentrating fruit quality.
• Integrated pest management: the olive fly is controlled with traps instead of routine chemical treatments.

Alongside the main picual, the grove also grows arbequina and hojiblanca olives, plus almonds, a common pairing in Andalusian dryland farming that helps diversify the land.

How is unfiltered extra virgin olive oil different?

The Olivar de los Cerros bottles its oil unfiltered. An unfiltered oil keeps tiny suspended particles from the olive itself, giving it a cloudier look and often a fruitier, more intense flavor when freshly made.

• Appearance: slightly cloudy versus the clean shine of a filtered oil.
• Flavor: fruitier and fuller-bodied in the first few months.
• Storage: best used relatively soon and kept in a cool, dark, well-sealed place.

When is picual olive oil harvested?

The olive harvest in Jaén runs from autumn into early winter. For an early-harvest oil like the one from the Olivar de los Cerros, green picking takes place between late October and November, earlier than the conventional harvest, which can stretch into December or January. During those weeks the estate expands its permanent team of four to handle the peak workload.

How should you store and use extra virgin olive oil?

To preserve the aromas and antioxidants of a good early-harvest extra virgin oil, treat it like a fresh product:

• Keep it away from light, heat, and air.
• Seal it tightly to prevent oxidation.
• Use it raw (on toast, salads, vegetables, fish) to appreciate its fruitiness and pepper.
• Enjoy it within its first year, when it is at its best.

The olive grove as a living farming project

The Olivar de los Cerros is an example of a family estate that moved from selling olives in bulk to making its own extra virgin oil. After decades delivering its crop to the village cooperative, the third generation built its own mill in 2009 and began bottling under its own label. Today two siblings run the estate and deliver part of the production to shareholders as boxes of oil. Understanding how it is grown, harvested, and pressed makes it easy to see why early-harvest picual from Jaén holds such a respected place among the world's olive oils.