Portugal produces 247.9% of the olive oil it consumes — and producers are still struggling. The problem isn't quantity. It's value, traceability and differentiation. What the sector already knows — and what still needs to happen.

A technical report published in Agroportal reveals that olive oil production costs in Portugal range from €2.5 to over €12 per litre. The traditional dryland groves of Trás-os-Montes are the most expensive to run — and the least supported. Here's what that means for producers, buyers and visitors.