Difference between new yam and old yam

A question that gets to the heart of yam culture!

In many West African countries, particularly in Ghana, Nigeria, and Cameroon, yams are a staple food and are celebrated during the annual Yam Festival. During this festival, two types of yams are often distinguished: "new yam" and "old yam".

New Yam (Iri in Igbo, Dada in Yoruba, and Akpu in Efik):

Old Yam (Ose in Igbo, Ogun in Yoruba, and Abak in Efik):

In summary, the main differences between new yams and old yams are: