dirty grout is an eyesore that can make your whole room look old and neglected. Thankfully, there are ways to clean it effectively without using harsh chemicals that are bad for your health and the environment.
Why Grout Gets Dirty
Grout is porous, so it easily absorbs dirt, grime, and stains from spills and everyday use. Mold and mildew also love to grow in grout due to moisture buildup in kitchens and bathrooms. Grout also naturally discolors over time, going from bright white to dingy yellow or grey.
While grout is designed to be water-resistant, it is not entirely waterproof. Moisture seeps into the tiny pores, allowing mold and bacteria to take hold. Hard water stains also penetrate grout and can be difficult to remove. Grout needs regular cleaning to avoid permanent discoloration and staining.
Dangers of Harsh Chemical Cleaners
Grout cleaning products often contain harsh acids like hydrogen chloride or toxic chemicals like bleach. The fumes from these cleaners can irritate eyes and airways. They can also damage the grout, eating away at the surface and exacerbating staining issues over time.
Prolonged exposure to the skin can cause burns or irritation. Many conventional grout cleaners contain chemicals linked to health issues like:
- Asthma
- Respiratory problems
- Eye and skin irritation
- Headaches
- Nausea
Harsh chemicals also harm the environment. They can pollute groundwater if poured down drains. Volatile organic compounds (VOCs) off-gas toxic fumes into your home’s air.
Safe, Effective DIY Grout Cleaners
Thankfully, you can get grout sparkling clean without using a single harsh chemical. Simple, eco-friendly ingredients you already have on hand are great natural cleaners. Here are some of the best options:
Baking Soda
Baking soda is mildly abrasive to lift surface dirt and stains without damaging grout. Mix it with water to form a paste and spread over grout. Allow to sit for 5-10 minutes before scrubbing and rinsing. Repeat as needed for tough stains.
White Vinegar
Vinegar is a natural degreaser and disinfectant. The acetic acid in vinegar kills mold, bacteria, and odors. Mix equal parts vinegar and water and spray onto grout. Allow it to sit for 15 minutes before scrubbing and rinsing. Combine with baking soda for an extra bubbly reaction that penetrates deeper.
Hydrogen Peroxide
Hydrogen peroxide is another sanitizing solution that removes mold and brightens grout. Pour 3% hydrogen peroxide directly onto grout and let bubble for 10 minutes before scrubbing with a stiff brush. Rinse thoroughly. For extra whitening power, follow up with a baking soda scrub.
Lemon Juice
Lemon juice removes soap scum and hard water stains from grout. Squeeze fresh lemon juice onto grout and let sit for 10 minutes. The citric acid works to dissolve mineral deposits and brighten dingy grout back to white. Rinse thoroughly.
Natural Scrubs for Cleaning Grout
For heavy duty grout cleaning, make a more abrasive paste by mixing baking soda, vinegar, or hydrogen peroxide with an eco-friendly scrubbing agent like:
- Sea salt – Salt crystals lift out deeply embedded stains.
- White clay – Gentle but effective mineral particles get into grout pores.
- Coconut coir – The coarse, stringy texture scrubs without scratching.
Use a stiff-bristled brush and apply elbow grease to work these pastes into dirty grout. Let them sit for 10-15 minutes before scrubbing and rinsing. The natural friction from scrubbing combined with the effervescent cleaning reaction will get grout clean naturally.
Grout Sealing Tips
Once grout is thoroughly clean, seal it to help prevent future stains. Look for non-toxic grout sealers made from beeswax, plant oils, or silica. Avoid sealers containing solvents like xylene or formaldehyde.
Apply sealant after cleaning using a small paintbrush. Allow the first coat to dry fully before applying a second coat. Buff off any excess. Reapply sealant once a year to maintain protection.
Maintaining Clean Grout
Keep grout looking like new with these maintenance tips:
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Sweep and mop tile floors frequently using only mild, plant-based cleaners.
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Mix up a daily spray using distilled white vinegar or tea tree oil to kill bacteria and prevent mold growth in bathrooms.
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Wipe spills quickly to prevent stains.
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Seal grout annually.
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Spot clean grout as needed using the natural cleaners mentioned.
With some simple ingredients and a little elbow grease, you can have clean, bright grout again without exposing yourself to dangerous chemicals. Maintain it properly and your tiles will look their best for years to come.
