There has been demand for a bottled/canned green tea beverage which exhibits a good swallowing feel and lingering flavor, when drinking the beverage cold, and especially if time has passed since opening and the beverage temperature has increased and become lukewarm. The present invention provides a bottled/canned green tea beverage which exhibits a good swallowing feel and lingering flavor when drinking the beverage cold, and especially if time has passed since opening and the beverage temperature has increased and become lukewarm, by adjusting the particle diameter (D90) of an estimated 90 mass% of the tea extract to between 3 and 60µm, and adjusting the sweet/sour ratio to between 0.12 and 0.43.
