Although the main products of Kea suffered some changes along time, the island has kept its age-old traditions. During the last period of Turkish rule, until the beginning of the 20th century, the main product of this island was the acorns. In fact, their exportation developed the island's economy. This was in part due to the use of acorns, since they were used as a raw material in the tanneries of those times.
Although the local economy is no longer supported on acorns, Kea is still covered by dense clumps of oak trees that offer not only acorns but also shelter to a rich fauna. When it comes to economic activities, traditional cattle farming including cows, pigs and sheep is still practiced by most of the inhabitants, as well as agriculture and fishing.
The animals are kept in the terraced fields, far from town. The result of their activities is excellent dairy products, especially milk and cheese, a distinctive feature of many Greek islands, as well as great vegetables, fruits, and nuts. Honey is also one of the main products of Kea as there are many trees and bushes on the island.