Tej is Ethiopian honey wine — but that description, while accurate, undersells what it is in Ethiopian culture. It is not merely an alcoholic drink. It is the drink that appears at every significant moment in Ethiopian life: Orthodox Christian religious celebrations, weddings, funerals, the injera-and-stew feast that accompanies every family gathering, the tej bet (tej house) where neighbours congregate. For a country with one of the world's oldest literary and cultural traditions, Tej occupies a position analogous to wine in Mediterranean culture or sake in Japan — a fermented beverage so integrated into culture that it has become inseparable from the culture itself.
What makes Tej distinct from European or northern mead is gesho. Rhamnus prinoides — the African buckthorn, known in Amharic as gesho (ጌሾ) — is a shrub native to eastern and central Africa whose dried leaves, stems, and twigs are added to the fermenting honey-water mixture. Gesho contributes two things: bitterness (from compounds including alkaloids similar to hops' bittering resins) and fermentation regulation (its antimicrobial properties selectively suppress certain spoilage organisms while permitting yeast fermentation). The result is a honey wine with a characteristic herbal, slightly bitter finish that is entirely different from European mead and is considered by Ethiopians to be the correct and complete expression of fermented honey.