Understanding the Difference Between Grout Staining and Grout Deterioration

https://groutandtilehome.rivertonbrief.com/posts/understanding-the-difference-between-grout-staining-and-grout-deterioration

You might think stained or discolored grout is just dirty, but there’s a real difference between grout staining and grout deterioration. Staining is a surface issue—like when red wine or coffee seeps into the porous grout lines, leaving a mark that can often be cleaned or sealed. Deterioration, though, is when the grout itself starts crumbling, cracking, or pulling away from the tiles, usually due to age, moisture, or poor installation. Knowing which one you're dealing with matters: staining is…