What is a quarter teaspoon?

A quarter teaspoon is a unit of volume measurement used in cooking and baking. It is equal to 1/4 of a regular teaspoon, which is equivalent to approximately 1.25 milliliters. A quarter teaspoon is often used to measure small amounts of dry or liquid ingredients such as spices, salt, baking powder, vanilla extract, or lemon juice. It is a convenient tool for precise measuring and can help ensure accurate and consistent results in recipes.