The answer to 'why is my grout discolored' is that grout can become discolored for several common reasons, including dirt and grime buildup, mold or mildew growth, and improper cleaning. Discolored grout is a common problem that homeowners face, but there are solutions.
Over time, grout can attract dirt, dust, and other debris that can cause it to look dingy and discolored. Grout is also susceptible to mold and mildew growth, especially in damp areas like bathrooms and kitchens. Improper cleaning methods, such as using harsh chemicals or abrasive scrubbing, can also lead to grout discoloration.