Polyphenols and Extra Virgin Olive Oil: What You Really Need to Know
Polyphenols are playing an increasingly important role in the world of extra virgin olive oil. Known for their antioxidant properties, they are often presented as a sign of quality and freshness.
But is the quality of an extra virgin olive oil determined solely by its polyphenol content?
Not quite.
As many olive oil experts explain, polyphenols are certainly an important indicator, but they need to be understood in context. The quality of an olive oil also depends on many other factors, including the olive variety, harvest timing, extraction process, storage conditions, and freshness.
So, what exactly are polyphenols? Why are they important? And what should you really look for when choosing an extra virgin olive oil?
What Are Polyphenols?
Polyphenols are naturally occurring compounds found in olives. They develop throughout the fruit's growth and are transferred into the extra virgin olive oil during the extraction process.
They play several important roles. On one hand, they contribute to the oil's antioxidant properties. On the other, they influence its sensory profile, particularly its bitterness and the mild peppery sensation felt at the back of the throat, two characteristics commonly associated with a fresh, high-quality extra virgin olive oil.
The amount of polyphenols naturally varies depending on several factors, including:
- the olive variety;
- the climate;
- the ripeness of the olives at harvest;
- the production methods;
- the storage conditions.
As a result, it is perfectly normal for two excellent extra virgin olive oils to contain different levels of polyphenols.
Are Polyphenols Beneficial?
Yes.
For many years, research has shown that polyphenols are among the compounds responsible for the health benefits associated with consuming extra virgin olive oil as part of a balanced diet.
However, it is important to keep things in perspective.
Today, some olive oils promote exceptionally high polyphenol levels, sometimes exceeding 1,000 mg/kg. While these figures may seem impressive, experts point out that there is currently no evidence showing that an oil containing two or three times more polyphenols will automatically provide greater health benefits than another high-quality extra virgin olive oil.
In other words, polyphenols are important, but they do not tell the whole story.
Polyphenol Levels Naturally Change Over Time
One aspect that is often overlooked is that an olive oil's polyphenol content is not fixed.
Like many naturally occurring compounds, polyphenols gradually decrease over time. Exposure to light, heat, oxygen, as well as the oil's natural aging process, all contribute to a gradual decline in their concentration.
As a result, the polyphenol level measured at the time of production or bottling may not be the same several months later when you open the bottle.
The rate at which polyphenols decline depends largely on storage conditions. Olive oil stored away from light and heat will retain its qualities better than oil exposed to less favourable conditions.
This is why comparing two olive oils based solely on a single polyphenol value can sometimes be misleading.
A High-Quality Olive Oil Is About More Than One Number
Experts agree that the quality of an extra virgin olive oil depends on a combination of factors.
Some of the most important include:
- the quality of the olives;
- the olive variety;
- the harvest timing;
- cold extraction;
- the oil's freshness;
- proper storage conditions;
- its flavour profile;
- traceability;
- quality control;
- the natural presence of polyphenols.
An olive oil with exceptionally high polyphenol levels may offer a more intense flavour, with greater bitterness and a stronger peppery finish. Conversely, an oil with more moderate polyphenol levels may have a milder taste, making it an excellent choice for everyday cooking.
The key is choosing a high-quality olive oil that suits both your taste preferences and the way you like to cook.
How Maison Orphée Selects Its Extra Virgin Olive Oils
For more than 40 years, Maison Orphée has carefully selected extra virgin olive oils from trusted partner producers located in the world's leading olive-growing regions. Our team regularly visits these producers to build long-term relationships and ensure they continue to meet our high standards for quality and craftsmanship.
Our oils are carefully tasted and selected based on several criteria, including freshness, aromatic balance, authenticity, and overall quality. We prioritize olive oils that deliver a balanced flavour profile and are enjoyable to use every day.
Our Delicate Extra Virgin Olive Oil is perfect for everyday cooking, from salad dressings and roasted vegetables to grilled dishes, pasta, and baking, thanks to its smooth, well-balanced flavour.
For those looking for an all-purpose cooking oil, Perfect Oil™ combines extra virgin olive oil with virgin seed oil to deliver a mild taste and exceptional versatility, making it ideal for sautéing, marinades, baking, and vinaigrettes.
Key Takeaways
Polyphenols are an excellent indicator of the freshness and quality of an extra virgin olive oil, but they should never be the only factor to consider.
A great olive oil is the result of expertise, carefully timed harvesting, gentle extraction, proper storage, and a rigorous selection process.
At Maison Orphée, we believe that an exceptional extra virgin olive oil combines quality, freshness, balance, and the pleasure of cooking. Polyphenols are naturally part of that equation, but they are just one of the many elements that contribute to an outstanding olive oil.