What Is Efflorescence? It’s White & Chalky On Walls & Floors…But Is It Mold?

What Is Efflorescence And Why Is It Confused With Mold? Efflorescence is a crystalline deposit of salts that are generally white and chalky and can be seen on surfaces such as stone, stucco, brick, and concrete. It’s a pretty common substance that is often confused with mold, but mold is usually green, blue, or black [...]