This article was automatically translated from the original Turkish version.
Registration Number(Text) | 1108 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Registration Date(Text) | 13.05.2022 | ||||||||
Applicant/Registrant(s) | Gediz Chamber of Commerce and Industry | ||||||||
Province(s) | Kütahya | ||||||||
Product / Product Group(s) | Meals and soups | ||||||||
Application Date(Text) | 04.03.2021 | ||||||||
Type of Geographical İndication | Mahreç Sign | ||||||||
Gediz Tarhanası is a traditional type of tarhana unique to the Gediz district of Kütahya Province in Türkiye, protected by geographical indication. It is a granular food product made by mixing wheat flour, full-fat yogurt, red kapya pepper, red hot pepper, onion, salt, mint, and sour dough in specific proportions. The dough undergoes a 21-day fermentation process followed by drying in the shade. Recognized by its orange color and tangy flavor, Gediz Tarhanası holds a significant place in Gediz’s culinary culture and is intrinsically linked to its geographical origin. It was officially registered as a geographical indication on 13 May 2022 under Law No. 6769 on Industrial Property.

Gediz Tarhanası (AA)
Gediz Tarhanası stands out due to its unique ingredients and production method. The product is prepared using the following ratios: 44% wheat flour, 44% red kapya pepper, 3% red hot pepper, 3% full-fat yogurt, 3% onion, 1% salt, 1% mint and 1% sour dough. The fermentation process imparts its characteristic tangy flavor and orange color. The dough is dried in the shade at temperatures between 21 and 23°C and stored in granular form at 12 to 14°C.
The production of Gediz Tarhanası is a meticulous process carried out within the boundaries of the Gediz district:
Sorting and Washing: Red kapya peppers and red hot peppers are sorted and washed with water.
Preparation of Tarhana Mixture: The peppers are finely ground together with peeled onion and dried mint using a mechanical grinder. Full-fat yogurt is then added to the mixture.
Preparation of Tarhana Dough: 500 grams of wheat flour, 130 grams of water and 12.5 grams of yeast are mixed to produce sour dough. This sour dough is then kneaded with the tarhana mixture and additional wheat flour to form a soft dough.
Main Fermentation: The dough is covered with a food-grade cloth and fermented at 23°C for 21 days. During this period, the dough is checked and stirred daily.
Drying: After fermentation, the dough is divided into small pieces, spread onto a food-grade cloth and dried in the shade at 21–23°C. During drying, the dough pieces are periodically reduced in size to accelerate the process.
Grinding: The dried dough is rubbed by hand to further refine it, passed through a sieve to separate larger pieces, and then dried again in the shade.
Packaging: The granulated tarhana is filled into food-grade cloth bags and stored at 12–14°C.

Gediz Tarhanası (AA)
Gediz Tarhanası was registered as a geographical indication on 13 May 2022 following an application submitted by the Gediz Chamber of Commerce and Industry on 4 March 2021. The label “Gediz Tarhanası,” along with the designated logo and geographical indication emblem, must appear on the product or its packaging. If this is not feasible, the emblem must be displayed prominently within the production facility.
The production process is monitored by a five-member oversight body composed of representatives from the Gediz District Directorate of Agriculture and Forestry and the Gediz Municipality, coordinated by the Gediz Chamber of Commerce and Industry. Regular inspections are conducted annually, with additional inspections carried out upon complaint or when deemed necessary. Inspections verify compliance with ingredient specifications, adherence to production methods, and correct use of the geographical indication.
Gediz Tarhanası has a deep-rooted history in the culinary culture of the Gediz district. Produced using local ingredients and traditional methods, it forms an integral part of the region’s gastronomic identity. Its registration as a geographical indication safeguards its quality and authenticity, contributing to the preservation of Gediz’s cultural heritage.
Anadolu Ajansı. “Coğrafi İşaretli 'Gediz Tarhanası' Kadınların Geçim Kapısı Olacak.” Accessed August 17, 2025. https://www.aa.com.tr/tr/yasam/cografi-isaretli-gediz-tarhanasi-kadinlarin-gecim-kapisi-olacak/2604653
Turk Patent and Trademark Office. "Gediz Tarhanası." Accessed August 17, 2025. https://ci.turkpatent.gov.tr/Files/GeographicalSigns/e48fcdf6-6fba-435f-911a-d0cf731984f4.pdf
Türk Patent ve Marka Kurumu. "Gediz Tarhanası." Coğrafi İşaretler Portalı. Accessed August 17, 2025. https://ci.turkpatent.gov.tr/cografi-isaretler/detay/3567
Registration Number(Text) | 1108 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Registration Date(Text) | 13.05.2022 | ||||||||
Applicant/Registrant(s) | Gediz Chamber of Commerce and Industry | ||||||||
Province(s) | Kütahya | ||||||||
Product / Product Group(s) | Meals and soups | ||||||||
Application Date(Text) | 04.03.2021 | ||||||||
Type of Geographical İndication | Mahreç Sign | ||||||||
Characteristics
Production Process
Geographical Indication and Oversight
Cultural Significance