What does the tare button do on a balance?

The tare button on a balance is used to zero the scale with an empty container or any item placed on it, effectively subtracting the weight of that container from the total weight measurement. This allows users to measure only the weight of the substance being weighed, ensuring more accurate results. By pressing the tare button, the display resets to zero, making it easier to obtain the net weight of the material without needing to do manual calculations.