Potato comes from the volcanic highlands: Niğde, Nevşehir and Konya sit above 1,000 metres on light ash soils that grow a clean, well-shaped tuber with good skin finish. Adana supplies an early crop from April.
Variety selection follows end use and it is worth getting right. Agria is the long oval yellow-fleshed variety with 20 to 22 % dry matter — the frying and processing standard. Marfona is a round early with lower dry matter that boils and holds shape. Lady Rosetta is a crisping variety with very high dry matter and low reducing sugars.
Storage temperature is where processing buyers get caught. Table potato holds at +4 to +6 °C, but potato held that cold converts starch to reducing sugars and will fry dark. Anything destined for crisps or chips has to be stored at +8 to +10 °C with sprout suppression. We store to the end use, and we need to know it at order.