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Moisture sorption characteristics of Chhana murkiwere investigated at a temperature of 20 o C, 30 o C, and 40 o C using the static gravimetric method. Sorption curves obtained were sigmoid in shape and classified as type II. Equilibrium moisture content increased with an increase in water activity and decreases with an increase in temperature. Among the BET ,GAB, and Caurie models tested, the BET and GAB models were found better to predict EMC data. BET monolayer decreased from 5.77 g H 2 O /100 g of solids at 20 o C to 4.83 g H 2 O /100 g of solids at 40 o C. The GAB monolayer value decreased from 5.90 g H 2 O /100 g of solids at 20 o C to 5.14 g H 2 O /100 g of solids at 40 o C. The properties of sorbed water viz., number of adsorbed monolayer, percent bound and non-freezable water and surface area of sorption were determined using Caurie equation. Net isosteric heat of sorption decreased with a corresponding increase in moisture content, initially rapidly up to 15.89 g of water/100 g of solids and then approaching a constant value.

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