The wet sauna myth: sauna, steam room and hammam
What is often called a wet sauna is a steam room. Understand how it differs from a Finnish sauna, why löyly matters and why hammam means something else.
In Brazil, saunas are commonly divided into two types: dry and wet. On a club sign, in a hotel description or in a discussion about what to build, choosing between them can sound like a matter of how much steam you want. That division puts different experiences under one name.
What is often called a “wet sauna” is a steam room. The expression is common in Portuguese, but it hides a useful distinction for anyone visiting a venue or planning a project. If you encounter the same wording in English, check what the venue actually offers.
A steam room has its own name
In a traditional Finnish sauna, a heater heats stones, and water poured over them produces steam. In a steam room, a generator supplies steam to the room. Steam bathing uses lower temperatures and higher humidity. Tylö compares these formats in its catalogue.
“Steam room” describes that space more clearly than treating everything as a wet version of a sauna. It helps visitors understand the offer. For someone planning a build, it helps them request a quote for the right system.
But is a real sauna always dry?
No. That claim seems to settle the confusion, but it removes a central part of Finnish sauna bathing: löyly, the steam released when water meets hot stones. UNESCO highlights it in its recognition of sauna culture in Finland.
“Dry” should therefore not be read as “no water on the stones.” A sauna can have steam and still be a sauna. Some heaters also allow more humid bathing, as Harvia explains in its guidance on temperature and water.
The mistake is using the presence of steam alone to decide what to call the bath.
A hammam is not just any steam room either
Another common shortcut is to call every “wet sauna” a hammam. The hammam has its own tradition. In Turkish bathing, the experience may include resting on heated marble, washing, exfoliation and a foam massage, as described by GoTürkiye, the country’s official tourism portal.
If a venue only offers a room supplied by a steam generator, the clearest name is steam room. To advertise a hammam, the description needs to explain which bathing experience and ritual are available.
What to ask before booking
Instead of stopping at “dry or wet?”, ask what the experience involves: is there a heater with stones, and is water used? Is the room supplied with steam? Does the visit include washing and exfoliation, or just access to a hot room?
Those answers tell you more than a sign saying “sauna.” They also let you choose the bath you want without confusing equipment with traditions.
To compare systems, read our guide to sauna types. To understand how these baths fit into a venue’s wider offering, explore the differences between a bathhouse and other bathing spaces.