Where did coffee first become a vital export after the Ottoman Turks occupied the area?

Coffee first became a vital export in Yemen after the Ottoman Turks occupied the area because Yemen is recognized as one of the earliest places where coffee was cultivated and traded extensively. The favorable climate and geography of Yemen allowed for the production of high-quality coffee beans, which were then exported to other regions, particularly to the Arabian Peninsula and beyond.

During the Ottoman Empire period, the demand for coffee surged, leading to its establishment as a significant trade commodity. Yemen's coffee, particularly the Arabica variety, became known for its unique flavors and was sought after in various markets.

In contrast, while Ethiopia is often credited as the birthplace of coffee, it wasn't the primary export region during the Ottoman era; instead, it was known for its local consumption and cultural significance. Venice and Constantinople had important roles in the coffee trade later due to their strategic locations and connections to Europe, but Yemen was the initial region where coffee evolved into a major export following the Ottoman expansion.