Astringent taste is a sensation often described as dry or puckering, commonly experienced when consuming certain foods and beverages. This taste is primarily caused by the presence of tannins, which are compounds found in various plants. Foods like unripe bananas, pomegranates, and certain types of grapes exhibit astringency, as do beverages like red wine and tea. When astringent substances are consumed, they can cause a tightening feeling in the mouth and throat. This effect occurs because tannins bind to proteins in saliva and tissues, reducing moisture. While astringency is not a primary taste like sweet or salty, it plays a significant role in the overall flavor profile of many foods and drinks.