TASTE RECEPTOR REVIEW (2007). “Along with taste sensations, food usually simultaneously evokes other sensations, e.g., odor, touch, temperature, and irritation. Although it is not always easy to separate all these sensations perceptually, the nongustatory components are sensed by different systems, olfaction and somatosensation.”
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2721271/