Addition of syrups to honey can result in a decrease in glass transition temperatures and an increase in the enthalpies of fusion. The Tg position and intensity in honey and syrups are different and can be used to distinguish between them. Pure substances can be characterized by a unique and sharp melting point, which is not the case for honey since it has a complex composition. Experiments showed that the effect that adulterating honey with syrups has on the enthalpy of fusion follows a linear relationship.