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Green hazelnuts on the branch

12 August 2026 · 9 min

The Black Sea and the global hazelnut map

Climate, harvest calendar and quality parameters; Türkiye's position in global supply.

Around two thirds of the world's hazelnuts come from Türkiye, most of them from the Black Sea coastline. That is no accident: the region's temperate climate, steady rainfall and humid sea air have kept the same hillside orchards productive for centuries.

What climate and geography contribute

Hazelnuts favour mild winters, cool summers and evenly distributed rainfall. The Giresun–Ordu belt combines those conditions with high-altitude orchards to produce kernels of intense aroma and balanced oil content. Giresun-quality hazelnuts are priced as a class of their own in international trade.

Green hazelnuts ripening on the branch
Harvest timing is decisive for fatty acid development and kernel yield.

Where global demand is heading

The chocolate industry is the main engine of global demand, followed by bakery, ice cream and healthy snacking. Growth brings tighter monitoring of quality parameters — moisture, aflatoxin, foreign matter — with EU food safety regulation acting as the de facto standard for exporters.

Export competitiveness is decided not by price alone but by low batch-to-batch variance and compliance with technical specifications. Buyers expect consistency in calibre distribution, roast colour and taste panels — which makes in-plant standard operating procedures and laboratory infrastructure decisive.

Where Koralla stands

Koralla's approach is to build a traceable chain that starts with grower relationships. Field knowledge combined with laboratory verification underpins long-term trust in more than 20 export markets.