Chocomix is a chocolate powder drink made from cocoa beans by local farmers in Nglanggeran Village. This study aims to investigate the shelf life of Chocomix using the Accelerated Shelf Life Testing (ASLT) method, particularly the critical moisture content approach. The result of the study shows that the critical moisture content of Chocomix is 4.01% (db). The MSI curve of Chocomix in a temperature of 28 o C forms an isothermal sigmoid curve type II with two curves in the range of aw 0.24 and aw 0.68. The equation obtained from the MSI curve is y = 86. 584X3 -91.893X2 + 28.818X -0.470. The shelf life of Chocomix stored at a temperature of 28 o C in a metalized film with a thickness of 51.89 µm is 16.4 months.