How to Recognize Real Olive Oil – A Guide to Protect Your Table and Your Health
Did you know that olive oil is the only oil that is made simply by pressing fresh fruits — without any chemical processes? That’s why it’s often called the “liquid gold of the Mediterranean.” Even the ancient Romans used olive oil not only in cooking, but also for skin care, as a natural remedy, and even as fuel for their lamps. Today, thousands of years later, olive oil remains an irreplaceable staple in every kitchen and on every table where healthy, natural food is truly valued. But how can you be sure that what you’re buying is really worth every drop?
Characteristics of Real Olive Oil
Olive oil holds a special place in the Mediterranean diet thanks to its wealth of antioxidants, vitamins, and healthy fatty acids. Numerous studies confirm that high-quality olive oil can help reduce inflammation, protect heart health, and is often mentioned for its potential to slow down the aging process. Unfortunately, for this very reason, olive oil is also one of the most commonly counterfeited food products on the market. That’s why it’s so important to know how to recognize genuine olive oil — only then can you truly enjoy all the benefits it has to offer.
At OPG Branko Marinov, we’re happy to share a few simple tips that we also use for our own family.
First, always read the label carefully — real olive oil clearly states its origin, variety, and the method of processing. When you see “cold pressed” or “first press” on the label, you can be sure the oil was produced purely by mechanical means, without high temperatures that would destroy delicate aromas and valuable nutrients.

Freshly picked Oblica olives during the traditional hand harvest at OPG Branko Marinov, ready for same-day cold pressing into high-quality olive oil.
When it comes to color, don’t be fooled: the color of olive oil can range from deep green to golden yellow, depending on the variety and the time of harvest. Our Oblica, for example, produces oil with a gentle, natural golden-green hue that shows it hasn’t been industrially processed.
Take a look at the bottle too — dark glass is no accident. Sunlight quickly destroys valuable polyphenols and vitamins, which is why quality olive oil is always bottled in dark glass to preserve its nutrients.
If you notice a thick sediment at the bottom, be cautious — slight cloudiness can be normal for minimally filtered oil, but heavy sediment often means the oil hasn’t been stored properly.
And most importantly: always choose olive oil that comes from a trusted producer, with a name, a face, and best of all — a real story behind every drop.
At OPG Branko Marinov in Primošten, our olives grow on rocky slopes nourished by sun, sea breeze, and the Adriatic climate. Every olive is hand-picked, cold-pressed the same day, and bottled with care so that a drop of authentic Dalmatia makes its way straight to your table in its purest form.
How to Test the Quality of Real Olive Oil at Home
Olive oil has always held a special place in the Mediterranean diet because it’s one of the few natural oils produced purely through mechanical processes — without chemical additives or refining that strips away what’s most valuable in the olive fruit. It’s rich in antioxidants, vitamins E and K, healthy monounsaturated fats, and polyphenols, all of which have been scientifically proven to help reduce inflammation in the body, strengthen heart and vascular health, slow down cell aging, and support overall vitality. Even though it’s widely known that real olive oil offers many health benefits, few people realize it’s also one of the most commonly counterfeited food products on the market — often diluted with lower-quality vegetable oils, old refined oil, or oil of questionable origin hiding behind labels that promise a lot but deliver little. That’s why it’s so important to know how to recognize genuine olive oil that’s truly worth every drop. Authentic olive oil, like the kind we produce at OPG Branko Marinov, naturally has a greenish-yellow color that can vary depending on the olive variety, harvest time, and processing method. Its aroma is fresh and layered, with notes reminiscent of freshly cut grass, green tomato, artichoke, almond, or even crisp apple, while the taste must have real character — a balanced bitterness and a slight peppery kick in the throat, which confirms the oil is rich in healthy polyphenols. The texture of high-quality olive oil is silky and slightly dense — thicker than ordinary vegetable oils — which you’ll easily notice when tasting it by the spoonful or drizzling it over fresh bread. If you want to check your olive oil at home, try the simple fridge test: real olive oil will solidify and form crystals at temperatures below 7°C (44°F), while fake or diluted oils often stay completely liquid because they contain other vegetable oils. It’s also important to trust your senses — good olive oil should never smell rancid or moldy; instead, it should be aromatic, fresh, and leave a pleasant warmth and intensity on the palate. Many consumers don’t know that there’s a difference between extra virgin and virgin olive oil — the main difference lies in the level of free fatty acids and the degree of oxidation, and true quality is confirmed through chemical analysis and the skillful palate of a trained taster. Unfortunately, products labeled as “pure olive oil” are often industrial blends that have nothing to do with real liquid gold from the Mediterranean. That’s exactly why, here at OPG Branko Marinov, we proudly nurture every detail: from hand-picking olives on the rocky slopes of Primošten, to rapid cold pressing that preserves all the nutrients, all the way to bottling in dark glass that protects the oil from light. Our goal isn’t just to give you a simple cooking ingredient — it’s to help you enrich every meal with drops of oil that carry the true scents and flavors of a Dalmatian olive grove, our family’s hard work, and the sun that nourishes our trees year after year. If you’re looking for olive oil that hides nothing and gives you everything nature can offer, choose oil with a name, a family, and a story — choose OPG Branko Marinov.
The Most Common Olive Oil Frauds and How to Avoid Them
The most common sign that something isn’t right with olive oil is unrealistically low prices and flashy marketing slogans that easily lure buyers but rarely deliver true quality. If the price is significantly lower than the average for extra virgin olive oil, there’s a high chance you’re buying oil diluted with other vegetable oils or old refined oil that has lost most of its nutritional value. Common traps include generic labels like “homemade olive oil” or “Mediterranean quality,” which unfortunately often turn out to be empty marketing phrases without any real guarantee. It’s not unusual to find products on the market presented as local but actually carrying an EU origin declaration (from Greece, Spain, or Italy) with fake labels that hide their true source and processing methods. To protect yourself from fake oils and make sure you have only the best on your table, pay attention to who stands behind every bottle. Trustworthy olive oil producers, like OPG Branko Marinov, openly share details about the olive variety, harvesting methods, and production process — their oil comes with a name and a family behind it, not just a faceless logo. Additional proof of authenticity can be certifications like PDO (Protected Designation of Origin) or PGI (Protected Geographical Indication), which guarantee the oil’s quality and true origin. Always check whether the oil is bottled in dark glass and clearly labeled with producer information and olive variety — this is the best evidence that you’re not just buying another generic shelf product, but an honest oil that carries the story of the olives, the land, and the people who care for them in every drop.

Hand-picked Oblica olives carefully stored in crates after harvest at OPG Branko Marinov, ready for same-day cold pressing to ensure maximum freshness and quality.
Where to Find and How to Store Olive Oil
High-quality olive oil is always best bought directly from trusted local producers or small family-run olive mills that can offer you an honest story, a chance to taste the oil, and full details about how their olives are harvested, processed, and bottled. This is exactly the approach we value at OPG Branko Marinov, a family brand that produces olive oil with love, using natural and traditional methods — no chemical additives, only pure mechanical processes and quick cold pressing immediately after each hand harvest. This level of care ensures that every bottle preserves its full aroma, natural antioxidants, and true nutritional value. After purchase, it’s important to store your olive oil properly so it keeps its best qualities: ideally, olive oil should be kept in a dark, dry place at a stable room temperature of around 14 to 20 °C (57 to 68 °F), away from direct sunlight and sources of heat. The best choice is dark glass bottles, which prevent oxidation and help extend shelf life — when stored correctly, genuine olive oil keeps its quality for up to 18 to 24 months. Signs that oil has lost its freshness include a rancid smell, changes in color, or loss of its characteristic aroma, and poor storage in plastic bottles can even give the oil an unnatural taste. Many people wonder how much the olive variety — like our Oblica — and the harvest timing affect the final quality. The truth is, the time between harvesting and pressing is critical, because every minute counts when it comes to preserving the precious polyphenols that give olive oil its slight bitterness and healthy peppery kick. Our olive groves in Primošten have been cared for by our family for generations, and every olive is hand-picked and pressed the same day to capture the very best of the fruit. That’s why olive oil is never just another ingredient — it’s an investment in your health and the taste of Dalmatia in every drop. When you know where to buy olive oil, what to look for when choosing it, and how to store it properly, you can be confident you’re enjoying oil that elevates every meal. If you want to taste the power of nature, the rocky soil, and the sun that nourishes our olives, explore the range of olive oils from OPG Branko Marinov and see for yourself why the true flavor of the Mediterranean reveals itself from the very first drop.