Olive Oil Knowledge Hub
Production & Quality

Cold Extraction: The Highest-Quality Method of Olive Oil Production

8 min read 2024-10-20Europe Olive Oil

Quick Answer

Cold extraction means olive oil is produced at temperatures never exceeding 27°C, as defined by EU Regulation No 29/2012, without using any chemicals. This low temperature prevents the breakdown of heat-sensitive polyphenols, vitamins, and aromatic compounds. Europe Olive Oil keeps every stage, from harvest to processing, under 27°C and documents this standard with its EL40296 certification.

What Is Cold Extraction?

Under EU Regulation No 29/2012, the terms "cold pressed" or "cold extraction" may only be used for olive oils produced at temperatures not exceeding 27°C.

This temperature limit is critical: most polyphenols, vitamins, and volatile aromatic compounds in olive oil are heat-sensitive — elevated temperatures cause these compounds to break down.

Europe Olive Oil Production Stages

1. Harvest — Hand Picking

In our Cretan groves, olives are hand-picked from November to February at peak ripeness. Machine harvesting bruises the fruit and causes fermentation through extensive contact; hand-picking eliminates this.

The sooner olives reach the mill after harvest, the higher the quality: fermentation — which triggers free fatty acid accumulation — begins the moment the olive is detached from the tree.

2. Transport & Cleaning — Within 24 Hours

Harvested olives arrive at our facility within 24 hours. Leaves, twigs, and foreign matter are removed, then olives are washed with cold water.

This time constraint is the backbone of Europe Olive Oil quality: post-harvest delays rapidly raise free fatty acid content and disqualify oils from the extra virgin category.

3. Crushing & Paste Preparation

Olives are crushed using steel or granite mills to form a paste. Temperature is monitored continuously and maintained below 27°C.

4. Malaxation — Controlled

The paste is slowly stirred to allow oil droplets to coalesce. This too occurs under temperature control — the most challenging stage in cold extraction, because heat increases yield but damages quality.

5. Centrifugation (Decanting)

The paste undergoes centrifugation in two- or three-phase decanters, separating oil, vegetation water, and solids. No chemicals or solvents are used.

6. Filtration & Packaging

The crude oil is lightly filtered to remove fine particles causing turbidity. Before packaging, accredited laboratory tests — physicochemical and sensory (panel test) — are performed.

Cold vs Chemical Extraction

MethodTemperatureChemicalsQuality
Cold Extraction≤27°CNoneExtra Virgin
Hot Assisted35–50°CNoneVirgin or Refined
Chemical (Refining)80–120°CSolvent usedRefined / Pomace

Europe Olive Oil's Quality Commitment

For every production batch, the following are recorded:

  • Free fatty acid (FFA) content: ≤ 0.8%
  • Peroxide value: ≤ 20 mEq/kg
  • UV absorbance (K232, K268)
  • Sensory panel score (fruitiness, bitterness, pungency)

Our certification: EL40296 — approved by the Greek Ministry of Agriculture.

Cold extraction is not merely a production method — it is a quality pledge. Europe Olive Oil renews that pledge with every bottle.

Frequently Asked Questions

What exactly does 'cold extraction' mean?+

Under EU Regulation No 29/2012, the terms 'cold pressed' or 'cold extraction' may only be used for olive oils produced at temperatures not exceeding 27°C, with no chemicals involved. This limit protects heat-sensitive nutrients.

How soon must olives be processed after harvest?+

At Europe Olive Oil, harvested olives reach the facility within 24 hours. This window is critical because post-harvest delays rapidly raise free fatty acid content and can disqualify the oil from the extra virgin category.

What's the difference between cold extraction and chemical refining?+

Cold extraction happens below 27°C with no chemicals and yields extra virgin quality. Chemical refining uses solvents at 80–120°C and produces refined or pomace oil instead.

What is the EL40296 certification?+

EL40296 is Europe Olive Oil's quality certification, approved by the Greek Ministry of Agriculture. Each production batch is recorded for free fatty acid content, peroxide value, UV absorbance, and sensory panel score to meet its requirements.

🫒 Europe Olive Oil

Cold pressed in Crete, delivered across Europe.

Shop Now →