Avoid and prevent mildew stains in the sauna

Mildew stains in the sauna are not only unsightly, but also a health hazard. Therefore, everything should be done to prevent this from happening in the first place.
So mildew stains and co. don't stand a chance

So mildew stains and co. don’t stand a chance

Due to the high humidity in the sauna area, so-called mildew stains occur comparatively frequently. At first glance, it is not always directly visible whether such a stain in the sauna is just an unattractive discoloration or whether there is already a mold infestation. In any case, the mildew stains should be immediately removed professionally and also over a large area. If there is a mold infestation in the interior of the sauna cabin, the sauna should not be used again until this health-relevant problem has been completely eliminated.

High humidity and heat promote the development of mold stains

If you maintain your sauna hygienically on a regular basis and thus keep it clean, you can safely avoid mildew stains in the long run. This does not necessarily require a great deal of effort; regular but effective care of the sauna cabin is already sufficient to prevent annoying mildew stains, with or without mold growth.

However, preventive care of the sauna not only helps against stains, but also naturally increases the service life of a sauna cabin. The high humidity, but also the alternation between hot and cold temperatures, make the inside of a sauna in particular susceptible to the development of stains.

With regular cleaning and disinfection, bacteria or stains don’t stand a chance

In an unkempt state, the sauna cabin thus quite quickly turns into an ideal habitat for harmful molds, bacteria, or other uninvited microorganisms. Stains are then not purely cosmetic, but rather already a health problem. But of course it doesn’t have to come to that.

Some areas are particularly susceptible to stains, and it ultimately depends on how often a sauna is used. Experience has shown that sauna benches and floors need to be cleaned and disinfected most frequently, and preferably after every single sauna session. This takes some effort each time, but pays off in many ways.

Clean sauna stones at regular intervals as well

In the case of sauna ceilings and walls, however, it has been shown that such frequent cleaning is not absolutely necessary. Here, a maintenance procedure every few weeks, depending on the use of the sauna, is sufficient. The sauna stones in the heater and, of course, the heater itself should not be left out of the cleaning process. It is often possible to see at a glance whether cracks are forming, or whether deposits or discolorations are visible. If the degree of soiling has reached a certain level due to staining or deposits on the sauna heater, it may even be necessary to replace the stones.

Fresh air supply, enormously important for removing residual moisture

It also depends on the behavior of the sauna guests themselves that staining can be avoided as far as possible. No one should enter the sauna cabin without first taking an extensive shower, as this can already prevent harmful germs from getting onto the wood. A sauna towel as large as possible as a base ensures during the sauna that no sweat got on the wood, which can also lead to ugly stains.

Sauna slippers can also be cleaned and disinfected regularly, as this reduces the germ load. To avoid staining, a sauna cabin should be aired regularly. Thus, air exchange after a sauna session is important so that the interior of the sauna dries as quickly as possible.

Stain removal only with special cleaning agents

The sauna benches, which are particularly susceptible to stains, should be consistently wiped with a dry, clean and lint-free cloth after each sauna session. Afterward, please use another clean and damp cloth and wipe with it. This prevents discoloration and stains and increases the durability of the wood.

If the wood already shows unattractive discolorations, stains or residues, soft sandpaper or cleaning preparations specially developed for the interior of the sauna are suitable for cleaning. Conventional cleaning agents should not be used under any circumstances, as they could cause lasting damage to the sensitive sauna wood.


So, by regular and thorough maintenance, you can effectively avoid mold and other stains in the sauna. A clean sauna cabin is not only visually appealing, but also contributes to its longer life. Regular cleaning and disinfection prevents harmful bacteria and microorganisms from settling in the sauna. The sauna benches and floors in particular should be spotless after each sauna session, while other areas such as the sauna ceilings and walls require less frequent maintenance.

The sauna stones and stove should also be checked and cleaned regularly to prevent buildup and discoloration. To protect the wood from sweat and germs, it is recommended that sauna guests shower thoroughly before entering the cabin and use a large sauna towel as a base. In addition, good ventilation of the sauna after the sauna session is important to quickly remove residual moisture and promote drying.

If there are already stains or discolorations on the wood, they should be removed with special cleaning agents or soft sandpaper. Conventional cleaning agents should be avoided as they can damage the delicate sauna wood.

Thus, by careful and regular maintenance, you can ensure that mildew stains and other dirt do not stand a chance in the sauna. This not only creates a hygienic environment, but also improves the overall sauna experience. Enjoy a clean and pleasant sauna where you can feel completely at ease.