but there are key differences. Efflorescence is a crystalline deposit of salts, which is usually white or light in color and feels chalky or powdery. In contrast, mold can appear in various colors, including black, green, or white, and often has a fuzzy or slimy texture.
To differentiate between the two, perform a simple touch test. If the substance feels like a powder and crumbles easily, it’s likely efflorescence. Mold, on the other hand, tends to smear when touched and may have a distinct, musty odor. Additionally, efflorescence will dissolve
