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The Ultimate Guide to Sauna Cleaning

Home > Latest Articles > The Ultimate Guide to Sauna Cleaning
Barry Smith
By Barry Smith

Updated on 29th May 2025

Saunas are a haven for relaxation and rejuvenation, but maintaining their cleanliness is crucial to ensure a hygienic and pleasant experience. Whether you use your sauna privately or commercially, regular cleaning and maintenance can extend its lifespan and enhance your enjoyment.  

In this comprehensive guide, we’ll explore the best practices for sauna cleaning, focusing on key areas such as wood care, floor cleaning, and special considerations for commercial saunas. 

Why Sauna cleaning matters

A clean sauna not only looks inviting but also functions better. Regular cleaning prevents the build-up of dirt and bacteria, ensuring a healthier environment. KLAFS UK provide service and maintenance packages to provide efficiency of your sauna heater, control panel, lighting and cladding to prevent your sauna being out of use causing you any inconvenience to your bathing. 

 

Weekly inspection and sauna maintenance

Start by inspecting your sauna weekly. Look for any signs of damage, such as loosened screws or wear and tear on the wood. Address these issues promptly to prevent further deterioration. The wood panelling of the sauna (inside and outside) as well as the seats and benches must never be sprayed with a water hose or high-pressure cleaner. This also applies to cleaning the floor inside the cabin. The wooden surfaces of walls and ceilings should be cleaned once or twice a year, or more often in cases of very heavy use, by wiping these surfaces with a damp cloth. 

Pay special attention to the sauna heater. We recommend changing the sauna stones once a year if you use the sauna regularly. 

 

Wood care 

The wood in your sauna is sensitive to moisture, so it’s essential to avoid using a water hose or high-pressure cleaner on the wooden cladding, benches, or floor. Instead, wipe the seating and benches with a damp cloth.  

For a thorough cleaning, use a specialised wood cleaner like KLAFS wood cleaner. Apply the cleaner undiluted, let it sit for 1-2 minutes, then scrub with a sponge. Rinse with clean water and dry the surfaces thoroughly. Contact KLAFS UK to order yours.   

Regularly cleaning the benches not only keeps them looking fresh but also prevents the buildup of sweat and bacteria. This practice is especially important in commercial saunas, where multiple users can increase the risk of contamination. 

Sauna cleaning wood care

Floor cleaning

The floor of your sauna requires regular attention to maintain cleanliness. Thoroughly damp-mop the floor, especially in commercial settings where daily cleaning is recommended. Scrubbing the floor as needed, particularly around the bench feet, can help remove stubborn dirt and grime. 

If your sauna has a plastic grate, clean it daily outside the sauna with a scouring disinfectant. This step ensures that the grate remains free from bacteria and other contaminants, contributing to a healthier sauna environment. 

 

Special care for commercial saunas

Commercial saunas, such as the PROFI Sauna, have specific cleaning requirements. The walls of these saunas are covered with waterproof panels up to 37 cm height, allowing the floor to be sprayed (but not with a high-pressure cleaner). Ensure that the wood panelling and benches remain dry to prevent damage. 

For PROFI Plus benches, tighten the screw connections of the metal feet after approximately six months of use. This maintenance step ensures the benches remain stable and safe for users. 

Sauna cleaning KLAFS MOLLIS sauna cushions 

General tips for sauna cleaning

Using appropriate cleaning products is essential for maintaining your sauna. KLAFS wood cleaner is recommended for cleaning benches, walls, and ceiling surfaces. After cleaning, ensure all surfaces are dried thoroughly to prevent water stains and bacteria. 

Regular maintenance and cleaning not only keep your sauna looking pristine but also enhance its functionality and longevity. By following these steps, you can enjoy a clean and hygienic sauna experience every time. 

Use towels or KLAFS MOLLIS Sauna Cushions on the benches to absorb sweat and oils. This practice helps keep the benches clean and reduces the need for frequent deep cleaning. 

Conclusion

Sauna cleaning is an essential part of maintaining your relaxation sanctuary. Whether you use your sauna privately or commercially, regular inspection, wood care, and floor cleaning are crucial to ensure a pleasant and hygienic environment. By following the tips outlined in this guide, you can keep your sauna spotless and extend its lifespan, allowing you to enjoy its benefits for years to come. 

Remember, a clean sauna is a happy sauna. So, take the time to care for your sauna, and it will continue to provide you with a rejuvenating escape from the stresses of daily life. 

Frequently asked questions

How often should I clean my sauna?

It’s recommended to perform a basic cleaning after each use, which includes wiping down benches, walls, and floors with a damp cloth. A more thorough cleaning should be done weekly, involving scrubbing surfaces with a damp cloth. For commercial saunas, daily cleaning of the floor and benches is advised. 

What cleaning products should I use for my sauna?

Specialised sauna cleaners, like KLAFS wood cleaner, are recommended for thorough cleaning. 

How do I remove stubborn stains from the wood?

Gently sand the area with fine-grit sandpaper. Apply KLAFS wood cleaner, let it sit for a few minutes, then scrub with a sponge. Rinse with clean water and dry thoroughly. 

How do I clean the sauna heater and stones?

Regularly brush off any limescale or water stains from the sauna heater. For the stones, soak them in a vinegar and water solution to remove any buildup. Ensure the stones are completely dry before placing them back in the heater. 

How do I prevent mold in my sauna?

Ensure the sauna is well-ventilated and dry after cleaning. 

 

How do I ensure my sauna is well-ventilated?

After each use, leave the sauna door open or open the dump vent to allow moisture to escape. Proper ventilation helps keeps the sauna fresh.