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Zep Grout Cleaner Went Viral Online For Good Reason

Zep grout cleaner - before and after photo of tan tiles with dirty grout, then clean grout
I had no idea my grout was so dirty before cleaning it with Zep!

Does This Viral Grout Cleaner Live Up To The Hype?

The purpose of this blog has always been to share the very best homemaking tips that can help you save money and time. So when I started seeing all sorts of amazing claims about Zep Grout Cleaner on social media and around the web, I knew I had to find out if it was really worth the hype so I could pass that information along to you!

Before we get to my honest review, I want to review some of the basics of what this grout cleaner is, how it works, and share some of the hype that inspired me to give it a try for myself.

Related: Here’s How To Clean Grout So It Looks Like New

Zep grout cleaner - blond woman in purple cardigan reading label on grout cleaner
Powerful but safe ingredients make all the difference.

Zep Grout Cleaner: What Is It & How Does It Work?

Believe it or not, this professional-strength grout cleaner doesn’t rely on bleach for its cleaning and brightening power. Its main active ingredients are urea hydrochloride and hydrochloric acid, “strong but safe” acids that generate a bubbling action that immediately gets to work lifting grime and muck off of grout and other surfaces.

Although you might be able to find it on Amazon, it’s far cheaper (about $11) at Home Depot. I was lucky enough to snag the last bottle at my local Home Depot — it’s a popular product! You may also be able to find it at other home stores or possibly even your local grocery store.

Zep grout cleaner - blond woman holding up a bottle of Zep grout cleaner

What Are People Saying About Zep?

This viral TikTok video initially brought my attention to Zep Grout Cleaner. After reading up on the product online, I came across plenty of rave reviews from Amazon customers who had tried it in their bathrooms, including these:

  • “Wow, wow, wow! I am blown away by the cleaning power in this stuff! I have struggled with my bathroom floors consistently for five years. Between the water and traffic, my floors have taken a serious beating. Coincidentally, I was on TikTok watching cleaning videos, and this was used. I figured, what the heck do I have to lose? Much to my surprise, it BLASTED through tough dirt and grime! I applied the cleaner…and boom, brand-spanking-new tile floor.”
  • “This product worked miracles in our bathroom. When we moved in, the grout was a dark gray from years of dirt buildup. This product was unbelievable. It only took one application to work its wonders. All-around incredible transformation!”

Between the video and reviews like these, I’m sure you can see why I simply had to try it out for myself!

Zep grout cleaner - hand putting grout cleaner on floor/ hand scrubbing grout
The cleaner immediately starting bubbling after applying!

Zep Grout Cleaner Review: My Honest Opinion

I have to admit, I was amazed by how well this product worked on my grout. In fact, I think my Zep Grout Cleaner before and after photos at the top of this post speak volumes about its effectiveness!

You can see it start to work as soon as you apply it. You simply apply it to a small section, let it sit for a couple minutes, scrub with a grout brush or old toothbrush, then rinse with water. It’s so easy!

Zep is also a huge time-saver, removing age-old stains and discoloration without a lot of arduous scrubbing. In addition to being a cleaner, this product is also a brightener, so it leaves tiles looking sparklier as well. (As always, it’s always a good idea to test it out in an inconspicuous area to see how your grout and tile react to it before getting started!)

How Does It Compare To Other Grout Cleaners?

I’ve tried other grout cleaners, including Soft Scrub Gel with Bleach, another popular option for cleaning grout. I didn’t like it as much for two reasons: first, I find bleach too harsh on grout, and find that a gentler approach keeps grout in better shape. Second, it was a bit messy and difficult to use. (Zep has a thinner formula that makes it a lot easier to use on large areas.)

In my opinion, the best grout cleaner for everyday cleaning is a solution of water, vinegar, and dish soap. But I also understand that really grimy grout lines may need an extra strength cleaner to make a distinct difference. In those instances, Zep is an excellent option, and I know I’ll be adding it to my list of miracle solutions for cleaning floors!

Zep grout cleaner - hand holding scrub brush over wet grout on floor
Look at all that dirt coming up! Very satisfying. :-)

Tips For Using Zep Grout Cleaner Safely And Effectively

If your grout has been sealed, you may need to remove the sealer with a strong stripper before using Zep to avoid uneven cleaning results. This can be quite the chore, but it would be worth the effort in the long run!

Even though Zep is safe to use as directed, it’s a powerful cleaner that should be used in a well-ventilated area and handled with care. Keep it away from your skin, and never mix it with other cleaning products (which, as we all know, can be a dangerous cleaning mistake!)

And finally, although Zep works wonderfully on ceramic tile and grout lines, it should NOT be used on marble, terrazzo, travertine, natural stone, chrome, stainless steel, brass, or Corian. Better safe than sorry!

Check Out My Other Product Reviews!

Do you have any grimy grout lines that could use a good cleaning?

Zep grout cleaner - before and after photo of tan tiles with dirty grout, then clean grout

How To Use Zep Grout Cleaner

Jill Nystul
I have to admit, I was amazed at how well Zep Grout Cleaner worked!

Equipment

  • Zep Grout Cleaner
  • Bucket of water
  • Grout brush or old toothbrush
  • Towels or rags for drying

Instructions
 

  • Apply Zep to a small section and let it sit for a couple of minutes
  • Scrub with grout brush or toothbrush
  • Rinse with water
  • Dry excess water with towel or rag

Notes

  • If your grout has been sealed, you may need to remove the sealer with a strong stripper beforehand to avoid uneven cleaning results. 
  • Zep is safe to use as directed, but it is a powerful cleaner that should be used in a well-ventilated area and handled with care. Keep it away from your skin, and never mix it with other cleaning products.
  • Zep works wonderfully on ceramic tile and grout lines, but should NOT be used on marble, terrazzo, travertine, natural stone, chrome, stainless steel, brass, or Corian.

Jill Nystul Photo

Jill Nystul (aka Jillee)

Jill Nystul is an accomplished writer and author who founded the blog One Good Thing by Jillee in 2011. With over 30 years of experience in homemaking, she has become a trusted resource for contemporary homemakers by offering practical solutions to everyday household challenges.
I share creative homemaking and lifestyle solutions that make your life easier and more enjoyable!

About Jillee

Jill Nystul

Jill’s 30 years of homemaking experience, make her the trusted source for practical household solutions.

About Jillee

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MORE IDEAS FROM

Homekeeping Tips

    • Susan, If the grout lines need to be cleaned, mix equal parts baking soda and water to create a gritty paste. Carefully scrub this paste onto the grout with a tiny brush as you avoid scratching or etching the edges of the tile with the tool. Then rinse it thoroughly. You could also buy a hand steamer and use that to clean the grout.

  • Another way of cleaning your grout after it has soaked a little with Zep Grout cleaner is to use an electric toothbrush to do the scrubing – not husbands brush! Save the old used brushes and then use your electric toothbrush with the old brush. Works so quickly that way!

  • I read your comments on Zep Grout Cleaner. From the video, so Ser you are “squirting” the cleaner on grout lines. Can you spray the cleaner on grout lines? Seems like squirting would use more product.

  • The same brilliant results can be had on grout by using Sodium Percarbonate. It’s the active ingrediant in lots of Oxy based soaker powders but unfortunately the big companies mostly use as little as 1-5% in their product and the rest is made up of fillers, such as ash.
    Pure Sodium Percarbonate powder thoroughly dissolved in hot water, spray over grout then lightly go over with a clean dust brush, will instantly remove dirt and discoloration.
    Youtube clip here – https://www.youtube.com/watch?v=uv_C38JVy8Y

    Sodium Percarbonate can be used as a cleaner for toilets, showers, removes mould, can be used to soak clothing (you only need a very small amount – mere tsps – as opposed to Oxy store brought powders) so many things.

    Best way to buy Sodium Percarbonate is from your local home brew/keg store, it’s used for cleaning and sanitising kegs and brewing tubes etc. I paid $6 for a kg tub from a brewing store but saw exactly the same thing online from a cleaning page for $70!

    Look up the uses of Sodium Percarbonate, you’ll be quite surprised.

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