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Optimizing the operational process of a cold chain fruit pack house The role of cold chain pack houses in preventing food from going bad is constantly becoming important. This is due to the growing concern of the world about food safety. However, cold-chain pack houses face numerous problems which prevent them from functioning effectively. This paper reviews studies relating to the cold chain and its importance as well as studies relating to the pack house. Flexsim simulation software is then used to model and simulate the operational activities and processes of a fruit pack house. The results obtained are analyzed to determine the idle resources and bottlenecks of the system. Adjustments are then made to the system to obtain better results which will contribute to the overall performance of the fruit cold chain. Keywords: Cold-chain, pack house, operational process, modeling and simulation, Flexsim. *Corresponding authors. E-mail: adjoaasantewaa14@yahoo.com and yinm@shmtu.edu.cn