Standard household detergents alone are rarely enough to clean brick properly, so if your home features exposed interior brick, plan to use alternative cleaning methods instead.
Here is how to do it.
First, find a pair of sturdy rubber gloves to protect your hands from the harsh brick surface and from your cleaning agents. Then, with a dry dish cloth, gently wipe the entire surface of the brick wall to remove loose dirt and dust.
Next, pour a grease-cutting dish detergent into a small bucket. Do not add water to the detergent. Add a small amount of table salt instead.
Next, apply a thin layer of the soap-and-salt mix to the bricks using a cloth and allow the mix to sit on the bricks for 10-15 minutes. Then, with a hard-bristled scrub brush, gently scrub the brick to remove the stubborn dirt.
Lastly, dip a clean dishcloth into a warm water-filled bucket and use the dishcloth to remove the detergent mix from the wall.
Allow the wall to air dry.
Cleaning exposed interior brick is more complicated than cleaning other household surfaces but a clean brick wall can help reduce in-home health hazards and keep your brick in its best possible condition for the long-haul.