Sweet: Something that is tasty and clings to your mouth and make you want more like sugar, candy, cookies , ice cream, grapes, molasses, honey, etc.
Sour: Something that set the teeth on edge , pucker the face and make the mouth watery when it touches the tongue like lemon, orange, Kyuru ( Emblica officinalis), seabuck thron, raw grapes, curd, butter milk, etc.
Salty: It creates hot sensation and produces saliva when it touches the tongue. For e.g., salt, natron, etc.
Bitter: It taste bitter, clears the foul mouth smell and does not want to taste more when anything bitter touches the tongue. For e.g. Bitter gourd, dandelion, coffee, etc
Hot: Something that burns the mouth, oozes out tears and produce heat when it touches the tongue, like chili, garlic, onion, Gingiber officinale, Piper longum etc.
Astringent: Something that give a weak sense of taste and sticks to the tongue and palate when in touches the tongue like, raw banana.