A Brief History of Kurukahveci Family and the Mehmet Efendi Brand 150 Years of Kurukahveci Mehmet Efendi The book, available from major bookstores and online sales points, summarizes the fascinating story behind the name Kurukahveci Mehmet Efendi, one of the oldest coffee brands in the world and one of Turkey's leading brands. coffee cloister with original photographs and period documents from the company and family archives.