What Tatami Is Made Of

Tatami mats have a surface woven from natural rush (igusa) over a supportive core made of rice straw, compressed wood fiber, or washi paper. Traditional straw feels plush and aromatic, while modern cores are lighter and more mold-resistant.

Because tatami absorbs and releases moisture, humidity control is the key to longevity. The goal is simple: let the mat breathe and avoid trapped dampness.

Daily & Weekly Care

Consistency matters more than perfection. These easy habits keep tatami clean and balanced.

Daily

• Open a window for a few minutes to allow fresh air in.
• Keep shoes and wet socks off the mat.
• Blot spills immediately with a dry cloth.

Weekly

• Vacuum gently along the grain using a brush attachment.
• Wipe lightly with a dry or barely damp cloth (never soaking wet).
• Lift the mat or any futon on top to let air circulate underneath.

Care Tip: In Japan, many households use a small futon dryer to keep tatami dry beneath bedding. If your room stays humid, this weekly step can make a big difference.

Odor & Mold Prevention

Most odors come from moisture. Reduce humidity and improve airflow with these tips:

• Keep indoor humidity under 60% with a dehumidifier or air conditioner.
• Place a small bowl of baking soda nearby to absorb odors naturally.
• For mild odor, wipe with a cloth dampened in vinegar water (1 part vinegar : 3 parts water), then dry with a clean towel.
• In humid regions, air the mat weekly or use a futon dryer for about 30 minutes.

Seasonal Care Tips

Tatami changes with the seasons. Adjust your routine slightly to match the climate.

• Spring–Summer: Watch humidity. Air mats weekly and run a dehumidifier during rainy periods.
• Autumn: Vacuum more often as outdoor dust increases.
• Winter: Avoid over-drying from heaters; place a small bowl of water nearby to balance room moisture.

In Japan’s rainy season (tsuyu), people sun-air tatami for 1–2 hours per side. If you live in a humid region, doing this monthly or near an open window achieves a similar effect.

When to Replace or Refresh Tatami

Even with care, tatami eventually shows signs of age. Consider refreshing or replacing if you notice:

• Frayed or faded rush surface that no longer recovers after cleaning.
• Persistent odor even after airing and vinegar-water wiping.
• Soft spots or uneven compression underfoot.

You may not need a full replacement. Replaceable covers (tatami omote), reversible panels, or repair kits can extend life and restore beauty.

Recommended Cleaners & Tools

Simple, soft tools are best — harsh cleaners and steam can damage rush fibers.

• Miele Compact C1 Canister Vacuum — Gentle suction with brush head for natural weaves (Amazon US)
• IRIS USA Dehumidifier — Compact size ideal for bedrooms and studios (Amazon US)
• Fuller Brush All-Natural Floor Cleaner — Mild formula safe for rush and bamboo (Amazon US)
• MIINA Washable Tatami Rug — Washable washi-fiber mat ideal for humid climates (Amazon US)
• HAGiHARA Tatami Panel — Mold-resistant wood-fiber core, made in Japan (Amazon US)

A Simple Routine for Peace of Mind

Tatami care is more than cleaning — it’s a small, steady ritual that helps your home breathe. Open a window, vacuum with the grain, and lift what lies on top. These simple gestures keep your floor fresh and your space serene.

In the quiet scent of rush grass and the soft texture beneath your feet, you’ll find what Japanese homes have known for centuries: cleanliness and calm often begin with the same gesture.