The thermally induced glass transition is an important concept to rationalise the textural consistency and stability of condensed starchy products and starch-based films. Starch granules contain an amorphous phase, which is the main component of linear amylose and some of the partially crystalline branched amylopectin. During vitrification that commonly follows starch gelatinisation, amorphous polymeric segments remain ‘‘frozen” in a random conformation resulting in slow molecular motions and effective immobilisation in the glassy state . Upon subsequent heating at a given scan rate, the glassy polymer converts into a rubbery system of high viscosity and increased configurational flexibility. This rubber-to-glass transformation is demarcated by the so-called glass transition temperature, Tg, which depends on the amylose/amylopectin content, surrounding relative humidity, molecular interactions between starch and low molecular weight co-solute, and the nature of measuring protocol.