The shelf life of a food product is a limited period of time after production and packaging, during which it maintains the necessary and acceptable level of quality for final consumption. The aim of the research was to predict the shelf life of chocolate packaged in two bilaminated containers with respect to peroxide value, using accelerated testing and constant relative humidity. The peroxide value was evaluated by potentiometric titration. The order of the reaction was defined and with the Arrhenius model the degradation rate constant was found for each container and temperature of study. Shelf life was determined with the kinetic equation of oxidation compound formation at 5, 20 and 35℃ at 217, 114 and 64 days for the 20 microns (μ) packages, and 114, 95 and 81 days for the 50 μ packages respectively. It is concluded that the 20 μ packaging between a storage temperature of 15 and 18℃ is the suggested packaging with a shelf life between 141 and 124 days. The results would enable those working in the chocolate manufacturing and packaging industry to take the temperatures and types of packaging studied as a reference in their production.