Erdek Kapıdağ olive oil is a distinctive olive oil produced in the Erdek district of Balıkesir Province, located in Türkiye’s Marmara Region, under the unique geographical and climatic conditions of the Kapıdağ Peninsula. This product was registered as a geographical indication by the Turkish Patent and Trademark Office on May 6, 2025, and is shaped by the region’s indigenous olive varieties, traditional production techniques, and local knowledge.

Geographical and Agricultural Characteristics

The Kapıdağ Peninsula extends into the Sea of Marmara and offers a microclimate conducive to olive cultivation. The region’s mild maritime climate, permeable soil structure, and high sunlight exposure ensure that olive trees yield both abundant and high-quality fruit. These natural advantages directly influence the sensory and chemical properties of the olive oil.

Production Process and Techniques

Olives, harvested by hand or with poles during the early harvest season, are processed within 24 hours. The production process is entirely mechanical; no chemical treatments are applied. Olives are cold-pressed (maximum 27°C) to extract the oil, which is stored in stainless steel tanks isolated from air. The production steps are as follows:

• Harvest: Conducted from October to December, depending on the ripeness of the olives.
• Sorting and Washing: Olives are separated from leaves and foreign matter and washed with clean water.
• Crushing and Malaxation: Olives are crushed into a paste and kneaded to separate the oil.
• Pressing: The paste is pressed in vertical or horizontal presses to separate oil and water.
• Separation: Oil, water, and pomace are separated using centrifugation.
• Storage: Extracted olive oil is stored in tanks protected from light and air.

Sensory and Chemical Characteristics

Erdek Kapıdağ olive oil is known for its fruity aroma, medium pungency and bitterness, and its color, ranging from golden yellow to greenish hues. Sensory analyses highlight notes of fresh grass, almond, and green olives. Chemically, it has low free fatty acid content and high polyphenol levels, which extend shelf life and enhance antioxidant capacity.

Control and Inspection Process

To be marketed as a geographical indication product, the production of Erdek Kapıdağ olive oil is monitored through inspection mechanisms approved by the Turkish Patent and Trademark Office. Inspections ensure that both production stages and the final product comply with established technical criteria. In this context:

• Inspection frequency and methods are carried out according to the rules specified in the registration certificate.
• Inspection activities are coordinated by the Erdek Chamber of Commerce.
• Producers are required to carry out production within the defined geographical boundaries and following the specified methods.
• Product samples undergo sensory and chemical analyses to ensure quality.
• If non-compliance is detected, the right to use the geographical indication may be suspended.

This inspection system aims to preserve the distinctive characteristics of the product and guarantee consumers a safe, authentic olive oil.

Cultural and Economic Value

Olive cultivation on the Kapıdağ Peninsula is a centuries-old agricultural tradition deeply intertwined with the local way of life. Olive oil production is not only an economic activity but also a cultural heritage. Geographical indication registration and its associated inspection system contribute to protecting this heritage and enhancing the product’s recognition in national and international markets.