Olive oil production is deeply rooted in tradition. For centuries, producers have relied on mechanical processes to crush olives, mix the paste, and separate oil from solids and water. While these methods have evolved, the core principles remain the same.
Today, however, producers face new challenges: fluctuating harvest quality, rising energy costs, tighter margins, and higher expectations for premium oil. To meet these demands, many are turning to modern processing technologies—one being Pulsed Electric Field (PEF).
So what exactly is the difference between traditional extraction and PEF-enhanced extraction? And does adopting PEF mean abandoning tradition?
Let’s take a closer look.
Traditional olive oil extraction relies on mechanical and physical processes. While equipment has modernized, the basic steps remain:
This process works by gradually breaking down olive tissues and allowing small oil droplets to combine into larger ones that can be separated.
During traditional olive oil extraction, the olive crusher breaks the cell membranes to release oil.
Modern equipment, such as hydraulic presses and centrifugal extractors, is designed to maximize oil extraction efficiency; however, a significant amount remains trapped within the cells.
This means that even well-optimized traditional systems leave some oil behind.
Malaxation is one of the most critical steps in traditional extraction. During this phase, the paste is slowly mixed to encourage oil droplets to merge.
However, malaxation has limitations:
PEF stands for Pulsed Electric Field. It is a non-thermal processing technology that applies very short electrical pulses to olive paste.
These pulses create tiny pores in cell membranes through a process called electroporation. This makes the cells more permeable, allowing oil droplets to escape more easily.
PEF does not replace crushing or malaxation. Instead, it enhances them.
In summary, even after crushing, many cell membranes remain partially intact. PEF:
In effect, this allows you to obtain more available oil before malaxation even begins.
We’ve put together this simple guide for olive oil producers. Have a look to get a better understanding of PEF technology in olive oil production.
PEF is usually applied after crushing and before malaxation.
In practice, this means:
Although in practice we are adding a step, the olive paste is treated with the pulses in microseconds. making the entire downstream process more efficient.
That position is ideal because:
Crusher
PEF
Malaxer
Breaks tissue structure
Perforates remaining cell membranes
Coalesces droplet
Traditional: Relies mainly on mechanical force
PEF: Adds controlled electrical permeabilization
In other words, PEF helps open cells that mechanical crushing alone may not fully break.
Traditional: Some oil remains trapped
PEF: More oil is released from each olive
This results in an optimized extraction yield.
Traditional: Longer malaxation is often needed
PEF: Malaxation time can often be reduced
Shorter processing time means lower energy use and less oxidation. Faster oil release reduces exposure, this helps preserve sensory and nutritional quality.
No. PEF does not alter the chemical composition of olive oil.
It does not involve additives, chemicals, or high temperatures. It simply helps release what is already inside the olive.
In essence, when additional extractable oil is present in the batch, PEF helps you recover it — with no risk of reducing yield or quality.
Yes. PEF is not about replacing tradition—it is about protecting it.
Producers still rely on:
PEF simply ensures that these factors are expressed more fully in the final oil.
Traditional methods work—but they were developed in a time when:
Today’s producers must operate under very different conditions.
Small efficiency losses that were once acceptable now have major economic consequences.
Producers choose PEF because:
In other words, it modernizes extraction without compromising identity.
The future of olive oil production will be shaped by producers who can combine:
PEF is part of this evolution.
It does not erase tradition—it strengthens it.
Traditional olive oil extraction has stood the test of time. However, today’s producers require tools that enable them to meet modern challenges.
PEF enhances traditional processes by unlocking more oil, preserving quality, reducing waste, and improving consistency.
It is not a replacement for tradition—it is a way to ensure tradition remains viable in the future.
Want to discover what benefits Pulsed Electric Field treatment could bring to your olive oil production? Fill out the form below, and let’s discuss it further.
An increasing number of olive oil producers are recognizing the advantages of PEF technology But what exactly is PEF, and why are so many olive oil producers starting to use it?
Boosting profitability in the olive oil industry – The Economic Benefits of PEF for Olive Oil Producers Let’s examine the economic advantages of adopting PEF
Pulsed Electric Field (PEF) technology is emerging as a game-changer in various industries, including olive oil production. In this post, we take a closer look at how a PEF system is integrated into a production line for olive oil.
