Spanish bottling companies have been advised to request taste panel results along with the chemical analyses to ensure their products comply with standards.
Orange-colored olive oil is likely rancid and of poor quality, as confirmed by consumers and experts alike. The International Olive Council established standards for olive oil quality, including the use of a panel test to determine if a product can be labeled as extra virgin, placing responsibility on bottling and exporting companies to ensure the products meet these standards.
There are many shades of good extra virgin olive oil. It can range from light yellow to a bright green. However, when it is orange, it is most likely rancid.
We caught up with shoppers in a large Seville supermarket to ask their opinion of the hundreds of jugs of orange-colored olive oil on offer. “There is something wrong with that oil. I would not buy it,” one woman told Olive Oil Times. They couldn’t exactly pinpoint the problem but consumers did recognize it was likely of poor quality.
When we spoke with the store manager, he was unaware that the olive oil could be rancid. He told us that his company had informed him that the olive oil was fine. He went on to explain that it changes to an orange hue from the sunlight.
He was right. The olive oil that was on the shelves closest to the light had a higher orange intensity. Unfortunately, he lacked knowledge on quality control and was misinformed on the labeling standards that the product was now clearly violating.
After purchasing three of the most ‘rancid-looking’ olive oils labeled as extra virgin and informally tasting them with other experts, it was evident the products were not just rancid but they also possessed faults such as muddy sediment and winey, clearly not extra virgin.
The International Olive Council (IOC) has established standards and guidelines for “panel test,” a method that classifies olive oil grades by implementing 8 to 12 trained tasting experts. To date, this is still the best and most cost-effective procedure to measure organoleptic quality. When a panel is unanimous that an olive oil has a specific fault, the product cannot be labeled as extra virgin. This method is applicable to all olive oils that are produced in IOC member countries.
Who is liable for a product that is labeled as extra virgin olive oil but does not pass these standards? Perhaps, the supermarket plays a role in the product being rancid by not following instructions to keep it away from the light. However, much of the responsibility lies with the bottling and exporting companies.
Recently, bottling companies in Spain have found themselves under increased scrutiny regarding the panel test, and it is raising legal issues that are worrying many bottling companies.
According to AgroNegocios, the board of directors of Anierac (National Association for Industrial Bottling and Refineries of Edible Oil) and Asoliva (Spanish Association for Industrial and Commercial Exporters of Olive Oil) spoke out confirming that, “the bottling companies have a responsibility to ensure that the products they are bottling and selling correspond with the characteristics presented in the label.”

The board of directors advised these companies to request a recent certificate (no more than three months old) carried out by an accredited laboratory from all of their providers. The certificate, they explained, should include results for both the physicochemical and organoleptic (panel) tests.
The subjectivity of the panel test has also been under a perpetual debate within the olive oil sector. Perhaps, Anuncia Carpio, a top Spanish taster explained the importance of the panel test best: “To get rid of the test would ultimately hurt the producers as well as bottling companies. It would give free reign to large distributors. If these large companies are able to play with prices and volumes now, I can’t imagine what they could do without an organoleptic analysis.”
More articles on: olive oil grades, olive oil tasting, organoleptic analysis
Sep. 13, 2025
Olive Oil Production in Leading Countries Forecast to Fall to 2.65 Million Tons
Experts project lower but still significant olive oil production in 2025/26 across Mediterranean countries, with price fluctuations and climate playing key roles.
Aug. 25, 2025
Olive Oil Regulations Come Into Force as Spain Prepares for ‘New Cycle’
The updated regulation is meant to streamline and improve data collection and reporting to ensure more transparency in the olive oil value chain.
Aug. 5, 2025
Debate Over Solar Plant Construction in Andalusian Olive Groves Intensifies
Solar developers and regional authorities insist the the mega-plants are necessary to help Spain meet its ambitious renewable energy goals. Olive farmers disagree.
Apr. 29, 2025
Olive Sector Key to Andalusian Circular Economy Plan
A new five-year plan from the Andalusian government sets ambitious goals for transforming the world's largest olive oil-producing region into a circular bioeconomy.
Jul. 25, 2025
Economy Minister Warns Spain’s Olive Oil Exports Vulnerable to U.S. Tariffs
With U.S. tariffs on imports from Europe expected to rise to 15 percent, new data suggests some producers are frontloading exports.
May. 6, 2025
Producers in Spain Cap Strong Harvest with Quality Awards
Spain's olive industry thrived in 2025, producing 1.41 million metric tons and winning 93 awards at the NYIOOC World Olive Oil Competition.
Jun. 4, 2025
Carbon-Capturing Power of Olive Groves Measured
New findings shed light on the climate potential of olive groves, offering a promising role in carbon sequestration efforts.
Jul. 17, 2025
Concerns Mount Over Sharp Decline in Olive Oil Prices
Prices hit record lows in Spain, prompting calls for withdrawal of excess oil from the market to avoid further decline.