What is the best time and method to remove mortar droppings on a brick?

The best time and method to remove mortar droppings on a brick is when it is almost dry, using a trowel. This timing is crucial because when mortar is in the early stages of drying, it's firm enough to be removed without damaging the underlying brickwork. Using a trowel allows for more precise control and effectiveness in scraping off the excess mortar, which can prevent unsightly blemishes and ensure a clean finish.

If mortar is allowed to dry completely, it becomes much harder and more difficult to remove, which may necessitate more aggressive methods that could potentially harm the brick surface. Furthermore, using hands to remove dried mortar can lead to skin injuries or damage to the bricks themselves. A broom is less effective because it may not be able to adequately clear the stiffer mortar from the surface, and using a stone could risk scratching or chipping the bricks. Thus, employing a trowel at the right moment ensures the mortar is removed cleanly and efficiently while preserving the integrity of the bricks.