The guava originated in the tropical region of the Americas and reached South-East Asia in the 17th century. Guava fruits are either round or pear-shaped, with thin dark green skin which becomes yellowish green as the fruits ripen. The fruits range from small tomato size to as large as 13 cm in length.
Some Vietnamese like to eat the guava when it is not completely ripe. The flesh is crunchy much like eating a slice of apple. Sometime, the guava slice is dipped in a mixture of salt and grounded red chili pepper. The Mekong Delta’s Xá Lị variety is probably the most famous in all of Vietnam.