The mouthfeel of wine, beer, and coffee is complex and multidimensional. It encompasses several attributes which can be interrelated, such as temperature, astringency, chemical irritation (e.g., spicy hot, tingling, burning), and viscosity. These attributes contribute to the overall impression and impact the description of both intensity (i.e., low, medium, high) and quality (e.g., syrupy, slimy, watery) of mouthfeel. The course ‘Mouthfeel in Beverages’ addresses scientific evidence on the compounds and mechanisms responsible for mouthfeel properties of beverages, with special emphasis on wine, beer, and coffee. The course will discuss the effect of certain mouthfeel properties, such as temperature and viscosity, on the perception of basic tastes. Moreover, variability between tasters, such as saliva composition, can also impact on the perception of mouthfeel. Finally, the course will present the central role of the trigeminal (tactile) component in the identification of certain aroma families.
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12 December 2021, 12pm-2pm GMT
• What is mouthfeel and how does it apply to beverages?
• The compounds and mechanisms responsible for mouthfeel properties of beverages.
• Interactions between trigeminal and gustatory sensations.
• Saliva composition and the perception of mouthfeel.
• Mouthfeel terminology for beverages? Communicating coffee mouthfeel atributes.
• What is role of trigeminal sensations in aroma identification and description?
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