Curiosity about EVO oil production

Extra virgin olive oil is essentially the fresh juice of olives: it is obtained exclusively by mechanical pressing without solvents or chemical processes, which is why it is often called a “liquid fruit juice.” This trait makes it closer to a fresh product than to a refined oil and explains why sensory quality depends so much on the raw material and on immediate handling.

The time between harvest and milling is decisive: olives should be processed as quickly as possible after picking because oxidation and fermentation alter aromas and antioxidants. In modern mills the practical rule is to process olives within twelve to twenty‑four hours of harvest to preserve polyphenols and fragrances; longer delays increase the risk of defects and reduce nutritional value.

Harvest timing and method shape the oil’s character: very green (unripe) olives yield lower quantities but higher polyphenol content and a sharper aromatic profile; overripe olives increase yield but can flatten the flavors. Harvesting can be manual and selective for high-end oils or mechanized for larger volumes; in both cases it is essential to avoid crushing and piling that encourage unwanted fermentation.

From crushing to cold extraction, temperature control is crucial: crushing breaks the pulp and releases the oil, malaxation allows oil droplets to coalesce, and cold extraction keeps temperatures low to preserve aromas and beneficial compounds. Cold extraction is not just a trend: it is a technical practice that protects natural antioxidants and the oil’s sensory profile.

Small practical facts for enthusiasts

• Filtration and storage affect clarity but not always quality: unfiltered oil may contain more solids and continue to evolve in the bottle.

• Polyphenols and health: the natural antioxidants in EVO oil are linked to anti‑inflammatory benefits and to the product’s oxidative stability.

• Tasting profile: fruity, bitter, and pungent are the three main notes that tell the story of cultivar, ripeness, and care in the mill.