Rarit is a jerky speciality from Lombok, West Nusa Tenggara, Indonesia. This product is made from a mixture of meat, tamarind, and NaCl through a marination process before drying. This research focuses on examining the effects of adding CaCl2 on the physicochemical properties of beef rarit. The study employed a Completely Randomised Design approach consisting of 4 different treatment variations, each replicated 5 times. Data were analysed using ANOVA to assess the effects of the treatments. Further analysis was performed using Duncan’s test. The treatments evaluated were as follows: N0 = 0 M CaCl2, N1 = 0.1 M CaCl2, N2 = 0.2 M CaCl2, and N3 = 0.3 M CaCl2. The findings indicated that the addition of CaCl2 had a significant effect (P<0.05) on pH, cooking shrinkage, and tenderness but did not have a significant influence (P>0.05) on the colour of rarit meat. The addition of CaCl2 was shown to reduce pH, cooking shrinkage, and moisture content while increasing tenderness. The best sample in terms of physicochemical properties was rarit meat with 0.1 M CaCl2 added (N1). Beef rarit with the addition of 0.1 M CaCl2 to the marinade can support the sustainable development of livestock products.