This dataset contains instrumental textural data obtained on boiled yam using extrusion method. The activities, which led to the production of this dataset, were carried out at IITA, Ibadan, Nigeria and were assessed and approved by the CIRAD Ethics Committee (H2020 ethics self-assessment procedure). This work was supported by the RTB Breeding project, through a sub-grant from the International Potato Center (CIP) to the French Agricultural Research Centre for International Development (CIRAD), Montpellier, France, incorporated in the grant agreement INV-041105 between CIP and the Bill & Melinda Gates Foundation (BMGF).