A teaspoon is a small spoon used for stirring tea, coffee, and other drinks, and for eating soft foods such as yoghurt or desserts. It is also a standard kitchen measure: one level teaspoon equals about 5 millilitres, or a third of a tablespoon — a conversion that matters in baking, where small differences in salt, raising agents, or spices change the outcome. Real teaspoons vary in size, so measuring spoons are the reliable tool. The teaspoon’s small capacity makes it the unit for potent ingredients: yeast, gelatine, spices, and medicines are all commonly dosed by the teaspoonful. In table settings it is laid for tea and coffee service and for desserts.