The purpose of this article is to verify the reproducibility of palm-based polyols from the optimised reaction conditions. The reproducibility studies on the production of the palm-based polyols were conducted via alcoholysis of epoxidised palm olein with isobutanol, catalysed by K10 montmorillonite under the optimised reaction conditions (reaction temperature at 60°C for 2 hr). It was proven that palm-based polyols with similar properties can be repeatedly produced when a set of standard synthesis steps was followed. This indicates that palm-based polyol can be produced with specific range of properties and this enables a feasible commercial production of palm-based polyols. The study on the recyclability of used K10 montmorillonite in the production of palm-based polyols will be carried out in the future.