The same cleaning chemical that works great on ceramic tile can permanently etch marble. Here's what's actually used professionally, broken down by material, and why pH is the deciding factor.
Cleaning chemicals are grouped by pH, and tile/grout materials tolerate very different ranges. Using the wrong pH isn't just less effective — on some materials, it causes permanent damage.
Vinegar and other acidic household cleaners are a common DIY grout-cleaning tip — but on natural stone and saltillo, that same acid etches the surface, causing permanent dulling that can't be cleaned away afterward. It's safe on ceramic/porcelain but genuinely damaging on stone.
Cleaning chemicals are formulated to remove material from the grout (soil, grime). Sealants and recolorants are formulated to add a protective or pigmented layer on top — this is why sealing only happens after grout is fully clean and dry, never combined into the same step as cleaning.
Matching the chemical to the material isn't a minor detail — on natural stone especially, the wrong product causes damage that cleaning itself can't undo. Get an instant quote for the right approach for your specific tile.
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