How to Clean a Sauna: A Complete Guide

A sauna is much more than a space to unwind—it’s a sanctuary for relaxation, rejuvenation, and warmth. But like any sanctuary, your home sauna needs care to maintain its charm and functionality. Regular cleaning and maintenance not only keeps your sauna looking pristine but also ensures a hygienic and long-lasting experience.

Whether you have a custom Bear Naked Sauna crafted from sustainable Kuuma wood or a classic sauna in your backyard, this guide will take you through the essential steps to keep your sauna in perfect condition.

How to Clean a Sauna: Explained in Four Steps

Step 1: Preparing Your Sauna

Before you start cleaning the sauna, clear any personal items like towels, seat covers, or water buckets. Open windows or vents to allow for proper ventilation. This initial setup ensures an unobstructed and safe cleaning process.

Materials you’ll need:

  • A soft-bristled brush
  • Mild, natural cleaning agents
  • A damp cloth or sponge

Step 2: Cleaning Sauna Wood and Benches

Sauna benches and walls are typically made of untreated wood, which absorbs sweat, moisture, and oils over time. Clean the wood surfaces carefully to preserve their natural beauty and longevity.

  1. Wipe Surfaces:

Use a damp cloth or sponge with warm water to gently clean the benches and walls. For stubborn stains, apply a mild wood-safe cleaner or create a natural solution using water and baking soda to clean your sauna effectively.

  1. Deeper Cleaning:

For tough stains or discoloration on sauna surfaces, lightly sand the affected areas with fine-grit sandpaper. This process restores the wood’s elegant finish and removes any buildup.

  1. Sanitizing:

Use a natural disinfectant to eliminate bacteria and maintain cleanliness. Avoid harsh chemicals, as they can damage the wood and leave unpleasant odors.

Step 3: Dealing with the Sauna Heater and Excess Moisture

The sauna heater is the heart of your sauna, producing the warmth that defines your experience. Keeping it clean ensures it continues to function efficiently and enhances your sauna experience.

  • Wipe down the heater with a dry cloth to remove dust and debris.
  • Check the sauna rocks for any cracks or wear. Replace them as needed to maintain even heat distribution.
  • Use a small vacuum or brush to clean the heater vents and reduce blockages.

To combat excess moisture, ensure proper airflow by opening vents and letting your sauna dry completely after cleaning.

Step 4: Final Touches and Drying Your Sauna

After cleaning, leave the door open and allow the sauna to air-dry completely. Proper drying prevents the growth of mold and mildew, keeping your space fresh and inviting for your next sauna session.

For an added touch, refresh the aroma of your sauna by placing a few cedarwood chips or adding a natural fragrance like eucalyptus oil to your next sauna session.

What Do You Use to Clean a Sauna?

The Importance of Using the Right Cleaner

The materials used in saunas, like untreated wood, require special care. Harsh chemicals can degrade their natural surface and leave harmful residues. Opt for safe, natural cleaners to preserve the wood’s integrity.

Recommended Cleaning Products

  • Baking soda: Perfect for removing light stains and odors.
  • Natural disinfectants (e.g., white vinegar and water blend): Gentle yet effective for sanitation.
  • Commercial sauna cleaners designed for wood surfaces.

Tools Needed

  • Damp cloth or sponge
  • Soft-bristled brush
  • Fine-grit sandpaper

Tips for Maintaining and Caring for Your Sauna

Regular sauna maintenance is key to a long-lasting and visually stunning sauna. Here’s how you can achieve this:

  • Protect Sauna Wood:

Use sauna seat covers or towels to prevent stains on the benches. Wipe surfaces after every use to remove sweat and oils.

  • Prevent Stains:

Address stains immediately to stop them from settling into the wood. Clean regularly to avoid buildup.

  • Regular Ventilation:

Allow the sauna to dry after every session to reduce humidity levels and protect the wood.

Clean Sauna Wood

Sauna wood requires tender care to retain its warmth and natural aesthetic.

Removing Stains from Sauna Wood

For stubborn stains, create a paste using baking soda and water. Apply the paste, gently scrub with a soft-bristled brush, and wipe clean with a damp cloth.

Longevity Through Maintenance

Preserve the wood’s lifespan by implementing a regular cleaning routine. Sanding lightly every few months can help remove surface damage and keep the wood looking its best.

Impregnate Sauna Wood

Impregnating sauna wood enhances its resistance to moisture and wear, keeping it in top-notch condition.

Benefits of Wood Treatment

By sealing the wood with approved impregnating oils, you protect it from humidity, stains, and bacteria, ensuring it maintains both function and aesthetics during sauna use.

What Should You Do After Using the Sauna?

Cleaning and maintaining your sauna after each use is a simple but effective sauna care practice.

  • Towel Management:

 Use clean towels for each session to absorb excess sweat and protect the benches.

  • Wipe Surfaces:

Quickly wipe down the wooden benches and walls post-session to maintain cleanliness and enhance your sauna experience.

  • Ventilation:

Leave the sauna door slightly open to enable airflow and prevent lingering dampness in the sauna environment.

How Can You Protect Outdoor Saunas from Extreme Weather?

Outdoor saunas, like the Bear Naked “Baby Bear” or “Papa Bear,” face seasonal challenges. Here’s how to safeguard them:

  1. Weatherproofing:

 Apply a wood sealant annually to protect against extreme moisture and sunlight.

  1. Covers and Shelters:

Invest in a durable cover or build a canopy to shield your outdoor sauna from heavy rainfall or snow.

  1. Regular Inspections:

Check for weather-induced damage and address it promptly to maintain structural integrity.

How to Keep Your Sauna Heater in Top Condition

The heater is essential for a comfortable session. Here’s how to maintain it:

  • Regularly clean the heater to prevent dust buildup.
  • Replace sauna rocks every few years to ensure consistent heat.
  • Address malfunctions promptly to avoid further damage or inefficiency.

Sauna Cleaner: Do You Need One?

A sauna cleaner can save you time and effort, especially for weekly maintenance tasks.

Natural Products vs. Commercial Cleaners

While baking soda and vinegar work for general cleaning, commercial cleaners are great for occasional deep cleaning when you need to clean your sauna. Select one designed specifically for wood care to avoid damage.

Sauna Cleaning: Final Words

Maintaining your sauna is not just about cleaning—it’s about preserving a personal retreat for relaxation and well-being. With proper care, your sauna will remain a sanctuary for years to come.

Bear Naked Saunas’ Commitment to Perfection

At Bear Naked Saunas, we create handcrafted saunas that blend traditional craftsmanship with innovative design. Whether you own our compact “Baby Bear” model or our luxurious “Grizzly Bear” custom sauna, our team is dedicated to helping you maintain its pristine condition.

Experience the warmth of nature with a sauna that’s as beautiful as it is functional. Start your self-care ritual with a Bear Naked Sauna today and enjoy the health benefits of regular sauna use.