Round to oval, with thin green skin and white or pink flesh full of small seeds. White-fleshed ones are often eaten crisp, cut into chunks and sprinkled with sour plum powder; ripe ones turn soft and strongly fragrant.
Guava juice cools you down and whets the appetite.
Tips
usage
番石榴 is the standard mainland term - 番 marks foreign-origin produce (cf. 番茄 tomato, 番薯 sweet potato). In Taiwan and Fujian the common name is 芭乐 (transliterated from a Min Nan reading). Don't confuse with 石榴 (pomegranate), an unrelated fruit.