Can unsealed grout be cleaned?

Author: Hailey Kohler  |  Last update: Sunday, June 15, 2025

Steam extraction cleaning is considered to be the most effective method of cleaning unsealed grout. The steam and detergent mixture loosens the dirt and grime before it is extracted from the pores using a vacuum. However, you might need to hire or buy a floor steamer to use this method.

How to clean unsealed grout without damaging it?

If you prefer cleaning grout with a DIY mixture, make a paste of 3/4-cup baking soda, 1/4-cup hydrogen peroxide and 1 tablespoon of mild dish soap. Apply the paste to the grout with a grout brush and scrub the grout.

Does hydrogen peroxide damage unsealed grout?

In most cases, hydrogen peroxide is safe for cleaning grout, as long as it's used correctly and in moderation. However, some grout types, like colored or older grout, may be more sensitive to chemical cleaners. Always test a small, inconspicuous area first to ensure there are no adverse reactions.

How to clean grout that has been sealed?

You can scrub your fully-cured grout. Try just water first as it will remove any soap or shampoo that may be on the grout. You might try a mild cleaner next, but rinse it well before sealing. A 50/50 water/white vinegar mix might also be worth a try. Scrub it in with a brush and rinse well.

What happens to unsealed grout?

Without a protective sealant, spills, splashes, and everyday use can lead to the penetration of liquids and contaminants into the grout lines. Over time, this absorption can cause grout to become discolored, taking on a dingy and unsightly appearance.

Amazing Method! Even 50 Year Old Tiler Never Seen Such Method

What is the best cleaner for unsealed grout?

Cleaning unsealed grout with baking soda

This is the best solution for unsealed grout that's only mildly dirty, or for stone tile surfaces. Make a paste out of baking soda and water. Avoid using vinegar as this could neutralise the baking soda before cleaning.

Why do contractors not seal grout?

Whoever installed your floors most likely did not seal the grout because it needs time to harden and cure completely.

Will vinegar harm unsealed grout?

Unfortunately, vinegar penetrates unsealed grout by seeping into the air spaces within the material. Once lodged in these spaces, vinegar will corrode grout with the passage of time. The grout will eventually wear off. So you should take not to apply vinegar for cleaning purposes if you have unsealed grout in the area.

Can you steam clean unsealed grout?

Sealed grout can stand up to the high temps and moisture, whereas unsealed grout isn't as durable. “Steam cleaning can damage grout, but mainly if the grout is unsealed or if you are using high-pressure steam,” explains Sarah McAllister, a cleaning expert and the founder and CEO of GoCleanCo and House Work.

How do professionals clean grout?

Steam cleaning is one of the most powerful ways to clean grout without the use of harsh chemicals. Professionals often use steam to loosen the dirt and other particles trapped in the grout without needing to scrub manually.

Can you use baking soda on unsealed grout?

Remember, you can only use vinegar on sealed grout. If you have unsealed grout or it needs resealing, use only the baking soda solution. You'll also need to be a bit more careful with the scrub brush.

How to clean unsealed tile?

The best way for cleaning unsealed tiles is a liquid bleach solution. Vaccum the tile to remove loose dirt first. Then mix a bleach solution and apply the solution on tiles and also apply it on the brush and start scrubbing, you will see the before and after results of tiles cleaning.

Does anything really clean grout?

It's best to try rinsing your grout with plain water and a gentle cleanser like dish soap. If this doesn't work, before you decide to use a cleaner across your surface, test it on a small section of your grout. We recommend starting with a dedicated grout cleaner before trying to deep clean.

Will hydrogen peroxide ruin grout?

Yes, hydrogen peroxide is a natural neutral cleaner that is safe to use on grout. Hydrogen peroxide and baking soda produce oxygenated bleach, which is highly effective for cleaning grout.

Can you shower with unsealed grout?

Should you seal grout in a shower? Sealing the grout in your shower is a relatively simple process that will prevent moisture from seeping between and under your tiles. Wet grout is a perfect place for dangerous mould and mildew to breed.

Can you use bleach on unsealed grout?

Unfortunately, it doesn't work nearly as well on porous surfaces like wood, drywall, and grout. Unless you're ready to have your tile surfaces regrouted soon, it's best to avoid making bleach a regular part of your weekly cleaning routine.

Is magic eraser good for grout?

Magic erasers are a fantastic way to get grout very clean, very quickly. The downside is, the grout will rip through your magic erasers in a hurry. You'll go through more of them than you're used to, and that means this is one of your more expensive options.

Does Bissell steam shot work on grout?

Just like the PowerEdge, this machine works as a handheld steamer, but it also works as an extended reach surface cleaner. The extended reach lets you bring the power of steam to grout that may be harder to clean because it's in the high corner of the shower.

What cleaners ruin grout?

Chemical cleaners, such as, Tilex, Soft Scrub, Scrubbing Bubbles, or ammonia products will nearly always result in your tile surfaces' grout becoming very discolored. If you do choose to utilize a cleaner, make sure that it's neutral in pH level to ensure it doesn't damage your grout.

How to remove mold from unsealed grout?

Opt for household staples like borax, ammonia, baking soda paste, or commercial grout cleaners. The vigorous scrubbing action helps dislodge the mold on grout. Baking Soda Paste: For a natural and eco-friendly approach, concoct a paste using equal parts water and baking soda.

How to remove grout haze?

Start by combining four parts water and one part white vinegar (hint: add more vinegar to increase the cleaner's strength). Pour into a bucket or spray bottle and apply the water and vinegar mixture to the tile surface. Scrub the area using a cloth, nylon pad, or a mop.

Do you have to reseal grout after steam cleaning?

If your grout has been previously sealed, reapplication may not be required. If your grout wasn't sealed, the Pros recommend sealing it after steam cleaning. Make sure to allow the grout to fully dry beforehand.

Is it expensive to seal grout?

The price depends on the tile material and size, the condition of the grout, and whether you hire a professional or DIY. The average cost to seal grout is $150 to $250 for 160 square feet of space, including materials and labor, though the price depends on the size of your tiles and the condition of your grout.

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