How to Clean Yoga Mat in Bathtub: The Deep Clean Guide

Learn how to clean your yoga mat in a bathtub with our guide. Restore grip and hygiene using a gentle soak, proper rinsing, and air-drying techniques.

Yoga Design Lab team
How to Clean Yoga Mat in Bathtub: A Deep Cleaning Guide

Introduction

We have all been there—settling into Child’s Pose (Balasana) at the end of a demanding Vinyasa (flow) session, only to be met with a less-than-fresh scent rising from the mat. While a quick post-class wipe is standard practice, deep cleaning is essential to maintain hygiene and grip. At Yoga Design Lab, we understand that a mat is more than just a surface; it is a sacred space for your practice. Over time, sweat, skin oils, and dust can settle deep into the fibers of your gear, especially if you favor high-intensity hot yoga. Knowing how to clean your yoga mat in a bathtub is the most effective way to restore its original performance and vibrancy. This guide will walk you through the specific steps to deep clean your mat safely, ensuring it remains a beautiful and functional part of your wellness routine for years to come.

Quick Answer: To clean a yoga mat in a bathtub, fill the tub with lukewarm water and a few drops of mild dish soap. Submerge the mat for 5 to 10 minutes, gently scrub with a soft cloth, rinse thoroughly with cool water, and air dry completely.

Understanding Your Mat Material

Before you turn on the faucet, you must identify what your mat is made of. Not every mat belongs in a bathtub. Some materials are like sponges, while others are designed to repel moisture entirely. Submerging the wrong type of mat can lead to waterlogging, material breakdown, or a permanent loss of grip.

Open-Cell vs. Closed-Cell Structures

Yoga mats generally fall into two categories: open-cell and closed-cell. Closed-cell mats have a non-porous surface. They do not absorb sweat or bacteria, which makes them easier to sanitize on the surface but less grippy when things get sweaty. Open-cell mats, including our signature Combo Mat, are designed to be absorbent. They feature a porous structure that "locks in" moisture to provide better traction. Because these mats act like a sponge, they require an occasional deep soak in the bathtub to pull out the salt and oils that have been trapped deep inside.

Material Specifics

Different materials react differently to being submerged in water. Natural tree rubber, which we use as the base for many of our designs, is a durable and sustainable choice, but it is sensitive to high heat and harsh chemicals. Recycled PET microfiber, found on the top layer of our mat + towel combinations, is perfectly suited for a bathtub soak.

However, some materials should never be submerged. Natural cork is naturally antimicrobial and self-cleaning. Submerging a cork mat in a bathtub can damage the organic structure and the eco-friendly adhesives used to bond the layers. Similarly, mats with a PU (polyurethane) top layer, like the Infinity Mat, should be spot-cleaned rather than soaked to preserve the specialized grip coating.

Mat Type Bathtub Safe? Best Cleaning Method
Combo Mat (Microfiber) Yes Submerge in lukewarm soapy water.
Cork Mat No Wipe with a damp cloth and mild spray.
Infinity Mat (PU) No Surface wipe with specialized PU cleaner.
Natural Rubber Yes Gentle soak; avoid extreme heat or sun.
Travel Mat (1.5mm) Yes Bathtub soak or gentle machine wash.

Why Deep Cleaning is Necessary

Regular maintenance is about more than just aesthetics. In the yogic tradition, we speak of Saucha, which translates to cleanliness or purity. Applying Saucha to our physical environment, including our gear, helps clear the mind and respects the practice.

Bacteria and Odor Control
Every time we practice Asana (physical postures), we transfer sweat and skin cells to our mats. In a warm yoga studio, this creates a perfect environment for bacteria to thrive. While a surface spray can kill some germs, it cannot reach the particles trapped in the lower layers of an open-cell mat. A bathtub soak uses the pressure of the water and the cleaning agent to lift these impurities out.

Restoring Grip
If you find your mat is becoming slippery even when dry, it might be due to a buildup of oils. Skin lotions, natural body oils, and even the residue from some cleaning sprays can create a thin film over the mat. This film interferes with the texture and reduces the friction needed for stable poses like Downward-Facing Dog (Adho Mukha Svanasana). A deep clean strips away this residue, "resetting" the mat's surface.

Extending Mat Longevity
A high-quality yoga mat is an investment in your health and the planet. Sweat and salt are actually quite corrosive over time. If left to sit, they can cause the natural rubber to dry out or the microfiber to lose its soft hand-feel. Deep cleaning every few months ensures the materials remain supple and strong.

Key Takeaway: Only submerge open-cell or microfiber mats in the bathtub. Closed-cell, cork, or PU mats should be surface-cleaned to avoid damaging their specialized coatings and internal structures.

Step-by-Step: How to Clean Yoga Mat in Bathtub

When you are ready to give your mat the "spa treatment," follow these steps carefully. This process is gentle enough for most absorbent mats while being thorough enough to remove deep-seated grime.

Step 1: Prepare the Tub

Clean your bathtub first to ensure no soap scum or hair transfers to your mat. Fill the tub with 3 to 4 inches of lukewarm water. Avoid hot water, as high temperatures can cause natural rubber to warp or lose its elasticity. Add a small amount of mild, eco-friendly dish soap or a dedicated yoga mat wash. You only need about one tablespoon of soap for a full tub; too much soap will be difficult to rinse out and may leave the mat feeling slimy.

Step 2: Submerge and Soak

Unroll your mat and lay it flat in the water. If the mat is too long, it is okay to let it curve up the sides of the tub or fold it over gently. Press down on the surface to ensure the water penetrates the fibers. Let the mat soak for 15 to 20 minutes. For particularly dirty mats, you can leave it for up to 30 minutes, but avoid longer soaks as this can over-saturate the rubber base.

Step 3: Gentle Scrubbing

Use a soft microfiber cloth or a very soft sponge to gently scrub the surface. Focus on the areas where your hands and feet usually land, as these are the high-contact zones that accumulate the most oil. Avoid using abrasive scrub brushes or steel wool, which can tear the surface or pill the microfiber. If you see specific stains, apply a tiny drop of soap directly to the cloth and work it into the spot using circular motions.

Step 4: Rinse Thoroughly

This is the most important step. Drain the soapy water and turn on the showerhead or the faucet. Rinse the mat with cool, clean water until the water runs clear and you no longer see any soap bubbles. You may need to flip the mat over to ensure the underside is also rinsed. Residual soap is the number one cause of a slippery mat after cleaning, so take your time here.

Step 5: The Towel Sandwich

Once rinsed, do not wring or twist your mat. Wringing can stretch the material and damage the internal mesh that keeps the mat stable. Instead, lay the wet mat flat on a large, clean towel. Place another towel on top and roll the "sandwich" up tightly. Step on the rolled-up towels to help the fabric absorb the excess water from the mat. This significantly reduces the drying time and prevents water from pooling inside the mat.

The Art of Drying Your Yoga Mat

After the bathtub deep clean, your mat will be heavy and saturated. Drying it correctly is just as important as the washing itself. Improper drying can lead to mold, mildew, or a permanent "funky" smell.

Avoid Direct Sunlight
While it is tempting to hang your mat outside on a sunny day, UV rays are the enemy of natural rubber. Prolonged sun exposure can cause the rubber to become brittle, a process called oxidation. This will lead to the mat crumbling and losing its bounce. Instead, find a shaded, well-ventilated area indoors or a covered porch.

Airflow is Essential
Hang your mat over a sturdy shower rod, the back of a smooth chair, or a laundry drying rack. Ensure the mat is draped evenly so it doesn't stretch out of shape. Do not use clip hangers, as these can leave permanent indentations in the soft material. If possible, keep a fan running in the room to keep the air moving.

Check for Total Dryness
Depending on the thickness of your mat—such as our 5.5mm Combo Mat—it can take anywhere from 24 to 48 hours to dry completely. Even if the surface feels dry to the touch, the inner core may still hold moisture. To test this, squeeze a corner of the mat firmly. If any dampness remains, let it hang for another half-day. Never roll up a damp mat, as this is how bacteria and odors return.

Daily Maintenance to Avoid the Tub

While deep cleaning in a bathtub is effective, you likely only need to do it every 2 to 4 months, depending on how often you practice. To keep your mat fresh between deep cleans, a consistent daily routine is key.

Post-Practice Wipe
After every class, use a gentle cleaning spray. You can make your own by mixing distilled water with a few drops of tea tree oil or lavender oil. Tea tree is a natural antifungal, and lavender provides a calming scent for your next session. Spray the mat lightly and wipe it down with a clean cloth.

The Role of Yoga Towels
If you practice hot yoga or sweat heavily, using a yoga towel is the best way to protect your mat. A towel acts as a barrier, absorbing the majority of the moisture before it ever reaches the mat’s surface. We offer microfiber towels specifically designed to grip the mat, and these can be tossed in the washing machine after every practice, keeping your mat much cleaner for much longer.

Choosing the Right Gear
If you find that your current mat is impossible to keep clean, it might be time to look at different materials. For those who prioritize ease of care, our Mat Quiz can help you find the perfect match. Some yogis prefer the naturally antimicrobial properties of cork, while others love the machine-washable convenience of our lighter travel mats.

Bottom line: Consistent daily wiping and the use of a yoga towel will reduce the frequency of bathtub deep-cleans, preserving the life of your mat.

Eco-Friendly Cleaning Solutions

Sustainability is at the heart of everything we do. When you are cleaning your mat in the bathtub, the water eventually returns to the ecosystem. Using harsh chemical cleaners like bleach or concentrated alcohol is not only bad for your mat but bad for the planet.

Mild Dish Soap
A simple, biodegradable dish soap is often the safest and most effective option. Look for "clear" formulas that do not contain heavy dyes or artificial fragrances, which can leave a residue on the mat.

Vinegar and Water
For a more natural approach, a solution of one part white vinegar to three parts water can be used in the tub. Vinegar is an excellent natural deodorizer and can help break down salt buildup from sweat. However, be cautious with vinegar on natural rubber mats, as the acidity can sometimes cause the rubber to dry out if used too frequently.

Baking Soda for Odors
If your mat has a persistent odor, you can sprinkle a small amount of baking soda into the bathtub water. Baking soda is alkaline and works to neutralize acidic odors. It is gentle on materials and rinses away easily, leaving your mat smelling neutral rather than perfumed.

Note: Never use "all-purpose" household cleaners or disinfecting wipes on your yoga mat. These often contain harsh surfactants that will ruin the grip and may cause skin irritation during your practice.

When to Replace Your Mat

Even with the best care, no mat lasts forever. Knowing when it is time to transition to a new mat is important for your safety and the quality of your practice.

  1. Loss of Traction: If you have deep-cleaned your mat and it is still slippery, the material may have finally worn down.
  2. Thinning or "Bald Spots:" Look for areas where the texture has smoothed out entirely, usually under the hands and feet. This means the support is gone.
  3. Crumbling or Peeling: If you see small bits of rubber or microfiber on your leggings after a session, the mat is beginning to biodegrade or break down.
  4. Persistent Odor: If a bathtub soak and baking soda cannot remove the smell, bacteria may have moved permanently into the core of the mat.

When you do decide to upgrade, consider the environmental impact. Our mats are designed with the planet in mind—using natural tree rubber and recycled plastic bottles—so that when your mat finally reaches the end of its life, it leaves a smaller footprint behind.

Conclusion

Cleaning your yoga mat in a bathtub is a rewarding ritual that honors your commitment to health and mindful living. By taking the time to deep clean, you are not just washing away sweat; you are refreshing your workspace and ensuring that every breath you take in your next class is clean and clear.

We believe that beautiful, high-performance gear should be built to last. Our founder, Chad Turner, started this journey in Bali with the goal of creating stunning, sustainable tools that inspire people to practice more often. Caring for your mat is part of that inspiration. Whether you are using our signature Combo Mat or one of our eco-friendly props, treat your gear with kindness, and it will support your journey for years to come.

If you are unsure which mat best fits your cleaning style and practice needs, we invite you to take our Mat Quiz for a personalized recommendation.

FAQ

Can I put my yoga mat in the washing machine instead of the bathtub?

Some mats, like our Travel Combo Mat or thinner microfiber designs, can be washed in a front-loading machine on a gentle, cold cycle. However, thicker mats and those with a natural rubber base are often too heavy and dense for a machine. The agitation can damage the mat’s structure or even unbalance your washing machine. For most high-quality mats, the bathtub remains the safest and most thorough deep-cleaning method. For more guidance, explore washable hot yoga mat options.

How often should I deep clean my yoga mat in the bathtub?

The frequency depends on how often you practice and how much you sweat. For a casual practitioner who uses a towel, once every three to four months is usually sufficient. If you practice hot yoga several times a week without a towel, you may want to deep clean your mat once a month. Pay attention to the grip and the scent; when the mat feels "heavy" or loses its traction, it is time for a soak.

Is it safe to use essential oils when cleaning my mat in the tub?

Yes, you can add a few drops of essential oils to the bathtub water for a light scent. However, use them sparingly. Oils are "lipids," and in high concentrations, they can leave a slippery film on the surface of the mat, especially on PU or rubber surfaces. Stick to one or two drops of a high-quality, pure oil like tea tree, eucalyptus, or lemongrass, which have natural cleaning properties.

Why is my mat still slippery after a bathtub deep clean?

The most common reason for a slippery mat post-cleaning is soap residue. If the soap wasn't rinsed out entirely, it will create a slick surface once the mat is dry. Another possibility is that the mat wasn't allowed to dry completely; moisture trapped inside can make the surface feel "squishy" or less stable. Try rinsing the mat one more time with plain water and ensuring it hangs in a well-ventilated area for at least 48 hours.