As Mathraki is a small and isolated island, most of its inhabitants deal with farming and fishing. You will certainly find the freshest fish in the few taverns of Mathraki because people fish it themselves every morning.
Apart from fresh fish, the second most popular product of Mathraki is the olive oil. You will see vast areas of olive trees in Mathraki that extend all over the island to the beachside. These olive trees are still gathered in the traditional manual way every autumn and then the fruit is processed to get high-quality oil.
People in Mathraki cultivate biologically. Pressing is done usually in the olive presses in Corfu. The olive oil is transferred to Mathraki by boat.