With the increasing demand for olive oil and the spread of its types in the markets, adulteration has appeared in various forms. Here arises an important question: How do I distinguish original olive oil from adulterated oil? This question concerns the health of the entire family, as natural, original oil is rich in health benefits, while adulterated oil is devoid of beneficial nutrients and can harm the body. Therefore, today we will learn together about the most important distinguishing signs between original and adulterated olive oil so you can choose with confidence.
How do I distinguish original olive oil from adulterated oil?
Original olive oil is extracted from fresh olive fruits using natural methods without chemical or thermal treatments, especially in the case of extra virgin olive oil, which is extracted by cold pressing only, ensuring the preservation of its high nutritional value and distinctive natural flavor. So, to answer how to distinguish original olive oil from adulterated oil, pay attention to the following:
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Characteristics of Original Olive Oil
Original and adulterated olive oil can be distinguished through a set of important points, such as:
Acidity:
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Original Oil: Characterized by low to moderate acidity.
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Adulterated Oil: Has noticeably high acidity.
Color:
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Original Oil: Its color ranges from dark green to golden yellow.
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Adulterated Oil: Tends to be light yellow or unnaturally brown.
Viscosity:
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Original Oil: Its consistency is relatively thick and viscous.
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Adulterated Oil: It is very light and liquid.
Smell:
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Original Oil: Has a strong, natural aroma similar to olive fruits or herbs.
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Adulterated Oil: Often odorless or has a weak odor.
Shelf Life:
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Original Oil: Its shelf life extends for a full year or more when stored correctly.
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Adulterated Oil: Its shelf life is shorter and may not exceed three months.
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Read the product label carefully
The packaging is the primary source of information, so attention must be paid to the country of origin, the type of oil (whether it is extra virgin or virgin), the pressing method (cold pressing is preferred), and the pressing and production date, which should ideally be recent, within 12-18 months at most.
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Methods for detecting adulterated oil
Sedimentation test:
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Original Oil: Impurities settle very slowly.
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Adulterated Oil: Impurities settle quickly, and its texture changes.
Freezing test:
If you are still wondering how to distinguish original olive oil from adulterated oil, place the olive oil in the freezer for 4 hours:
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Original Oil: Freezes and turns into a texture similar to ghee.
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Refined Oil: Its texture does not change.
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Mixed Oil: Becomes gelatinous, between liquid and solid.
Color test:
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Original Oil: In cold weather, it becomes cloudy or turns white.
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Adulterated Oil: This remains liquid and yellow when cold.
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Distinguishing by smell and taste
Smell:
Pour a small amount of oil into a glass cup and warm it with your hands for a few minutes. If you notice a natural grassy scent emanating from it, it is original olive oil.
Taste:
Original oil has a rich taste and leaves a slight burning sensation in the throat, while adulterated oil has a dull and uncharacteristic taste.
What is the best time to buy olive oil?
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Extra Virgin Olive Oil: It is best to buy it at the beginning of the season "October - November".
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Good Virgin Olive Oil: Can be bought in January.
It is preferable to purchase directly from mills to ensure cold pressing and high quality.
Characteristics of Original Olive Oil
And after we answered the question of how to distinguish original olive oil from adulterated oil, here are the most prominent general characteristics that distinguish original oil:
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Original olive oil has a strong, natural aroma similar to that of fresh olive fruits or green herbs, which is one of the signs of its purity and quality.
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In original olive oil, the acidity percentage is low and does not exceed 1% in all its types, which indicates the soundness of the pressing method and the quality of the fruits used.
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The color of original olive oil tends to be green when first pressed, but with time and proper storage, it gradually turns golden yellow without losing its quality.
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Original oil retains its natural taste and aroma for a long time without significant change, and also maintains its high nutritional value and beneficial compounds.
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Original olive oil has a higher viscosity compared to adulterated or mixed oil types.
What is the best olive oil?
By knowing the answer to the question of how to distinguish original olive oil from adulterated oil, let's now discover together the best olive oil you can choose depending on the purpose of use, whether for daily consumption, cooking, or even for health and therapeutic benefits:
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Virgin Olive Oil
Virgin olive oil is considered a good type with high nutritional value, as it contains an appropriate percentage of antioxidants that support body health and protect cells from damage.
Its acidity ranges from 1.5% - 1.5%, and it is suitable for moderate daily use, whether in light cooking or adding it to certain foods.
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Extra Virgin Olive Oil
It is classified as the best type of olive oil in terms of quality and nutritional value, as it is extracted from fresh olive fruits and cold-pressed without any chemical treatments.
It has a low acidity of less than 1%, and has a strong and distinctive natural flavor. It also has a high percentage of healthy fatty acids and nutrients, so it is preferred for use in salads, cold dishes, and healthy daily use.
You can check out: Uses of Virgin Olive Oil.
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Regular Olive Oil
Regular olive oil is the most suitable choice for cooking at high temperatures, as it tolerates heat better compared to extra virgin olive oil. It is extracted by natural methods, but its acidity is higher than virgin and extra virgin olive oil. In contrast, its nutrient content is lower compared to extra virgin olive oil.
Where can I get the best quality olive oil?
You can get the best types of original olive oil from the Noor Organic Food store, as it provides everything natural and safe for your health and all your family members. In the Oils and Natural Ghee section, you will find:
Extra Virgin Olive Oil

At our store, we make sure to choose natural olives carefully grown in farms where the harvest is hand-picked at its ideal time. It is then transported immediately after picking without any storage to be cold-pressed and bottled within only 6 hours in high-quality tanks to preserve its flavor and high nutritional value, producing extra virgin olive oil with an acidity of less than 0.3%, a balanced taste, and a rich, distinctive color, bringing you an unparalleled flavor from the fields of Lebanon to your kitchens. It is free from artificial ingredients, preservatives, and added flavors, in a large capacity carefully preserved to ensure quality in every drop.
How to keep original olive oil from spoiling?
After we answered the question of how to distinguish original olive oil from adulterated oil, correct storage is the most important factor in preserving original olive oil from spoiling or losing its nutritional components:
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Make sure to store olive oil in a cool, dark place away from direct sunlight and heat sources, as heat and light accelerate its oxidation and loss of natural properties.
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Avoid placing it near the oven, stovetop, or sun-exposed windows.
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It is preferable to store olive oil in dark-colored containers to prevent light penetration.
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Ensure the container is tightly sealed after each use, as exposure to air accelerates the oxidation process.
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It can also be stored in earthenware pots to maintain the oil's quality and acidity even with long-term storage.
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It is not advisable to mix olive oil with any other type of vegetable oil to avoid reducing its properties and benefits.
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Choose the appropriate type of olive oil for your daily needs, whether for cold use or cooking.
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Do not overdo the use of oil; only take the amount you need and re-store the rest.
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Purchase quantities appropriate for your consumption to avoid unnecessary long-term storage.
Also discover: The best way to store olive oil.
How can you tell if olive oil has gone bad?
Improper storage leads to olive oil spoilage and loss of its natural properties. Therefore, you can verify this by:
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Change in taste and increased acidity, where its taste becomes unusually bitter.
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Change in consistency and decreased viscosity compared to its original state.
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A clear change in color, indicating its oxidation.
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Emission of an unpleasant odor instead of the distinctive natural aroma of olives.
Most frequently asked questions about how to distinguish original olive oil from adulterated oil
How do I distinguish original olive oil from adulterated oil?
You can rely on the freezing test (original oil freezes), and the smell and taste test (original oil has a strong aroma and a slight bitterness), while adulterated oil is liquid and not viscous.
What are the specifications of original olive oil?
Original olive oil is characterized by its strong aroma, similar to that of olives. The acidity percentage in original oils does not exceed 1%. First-pressed original olive oil tends to be green and gradually turns golden yellow over time.
Learn about: Acidity level in olive oil.
How does original olive oil taste?
It features a strong fruity flavor, a slight bitterness, a pungent burning sensation in the throat, and a pleasant herbal aroma, reflecting the presence of antioxidants.
Now that you know the answer to the most important frequently asked question "How do I distinguish original olive oil from adulterated oil?", do not hesitate to follow the methods mentioned above to determine whether the oil in front of you is original or not, and make sure to buy from trusted sources like Noor Organic Food to get the best value for your money.
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