Common Scents Used in Hot Rooms and What They Are Known For

Which scents are common in hot rooms

Walk into a traditional Finnish sauna or a steam shower and the first thing you notice, after the heat, is often the smell. That smell comes from two places: the wood of the room itself and any scent added by bathers. Wood species like cedar, hemlock and spruce each release their own mild aroma as they warm, while many bathers add essential oils to the water ladle, the stones or a built-in aromatherapy system.

Most scents used in hot rooms fall into a small group of traditional choices: pine, spruce, eucalyptus and birch. These come from regions where sauna and steam bathing have long histories, and each has a distinct character. Steam showers in particular often include an aromatherapy port or a control that offers a handful of pre-set scents, as described by MrSteam's design guide.

Essential oils are not a medical treatment. The evidence for any health effect from breathing scented steam is limited, and none of the traditional scents below has proven therapeutic value. Think of them as part of the ritual: scent shapes the mood of the room, not the way your body responds to heat.

Pine and spruce: the forest scent

Pine is the most common essential oil used in traditional saunas, especially in Finland and other Nordic countries. The scent is sharp, resinous and fresh, evoking a forest after rain. In Finnish sauna culture, pine has been used for generations simply because it was available and its smell paired naturally with the wood of the room.

Spruce is close to pine but softer and slightly sweeter, with less of the sharp top note. Both are often labeled simply as "forest" or "Nordic" scents in aromatherapy blends. When added to the ladle water, a few drops are enough; the heat carries the scent through the room quickly.

Because pine and spruce oils are resinous, they can leave a sticky film on sauna stones and wooden benches over time. Rinse the stones occasionally and wipe benches after use to keep the room clean. If you are choosing between a traditional sauna and an infrared cabin, note that oil use differs between the two types; infrared rooms operate at lower temperatures and some oils may not vaporize as well.

Eucalyptus: the cool, sharp aroma

Eucalyptus is the most common scent in steam rooms and steam showers, where the humid heat seems to carry its sharp, cool aroma especially well. The scent is instantly recognizable: medicinal, crisp and almost minty. Many bathers associate it with congestion relief, though there is no strong scientific evidence for this effect.

Steam systems with built-in aromatherapy often feature eucalyptus as one of their primary options. The MrSteam AromaSteam system allows users to add scented cartridges directly into the generator, so the steam itself carries the oil into the room. This is different from a traditional sauna, where oil is typically added to the ladle water or sprinkled on the stones.

Eucalyptus is potent, and a little goes a long way. In a steam shower, one or two drops on the wall or in the aromatherapy port is enough for a whole session. In a traditional sauna, add it to the ladle water rather than pouring directly on the stones, as the concentrated oil can produce a surprisingly strong burst of vapor. For more detail, see the separate article on eucalyptus oil caution.

Birch: sweet and mild, tied to the vihta

Birch is the classic scent of the Russian banya and Finnish sauna alike, though its use is more tied to the vihta or vasta, a bundle of fresh birch branches used to gently whisk the skin. When hot water is poured over the leaves, birch releases a sweet, mild, almost grassy aroma that many describe as soothing.

Birch essential oil is less common than pine or eucalyptus in commercial blends, but it is available from specialty suppliers. It has a softer presence than pine and does not linger as long in the room. If you want to experience birch the traditional way, consider making or buying a birch whisk and letting it sit in warm water before bringing it into the sauna. The scent from the leaves is natural and requires no oil at all.

In a steam shower, birch oil can be used in the aromatherapy port, but it is less typically offered as a standard control option. If your steam system does not include birch as a pre-set scent, you can still release the aroma by placing a damp whisk in the room during your session.

Other scents you may encounter

Beyond the three main traditions, several other scents appear regularly in hot rooms. Lavender is popular for its calming association, though it is not a traditional Nordic choice. Citrus oils such as lemon and orange bring a bright, clean note that works well in steam showers. Menthol or peppermint offers a strong cooling sensation that many enjoy in humid heat.

Some steam systems offer a range of scents through their controls, as described in MrSteam's iSteam3 control features, which include scent control alongside temperature and lighting. These systems use specially formulated cartridges rather than raw essential oils, which keeps the dosage consistent and prevents the oil from degrading the generator components.

Herbal scents such as chamomile, sage and rosemary also appear in some blends, though they are less traditional in Finnish or Russian bathing culture. If you want to explore, start with a single scent and see how it behaves in your room's heat and humidity levels. Understanding how humidity works in your sauna or steam room helps you predict how strong a scent will feel.

How to choose a scent for your hot room

Your choice of scent depends mostly on your room type and your personal preference. In a traditional Finnish sauna, pine and spruce fit the character of the wood room and the Finnish tradition of löyly, the steam that rises when water hits the stones. In a steam shower, eucalyptus and menthol scents are common because the humid air carries them well.

For infrared cabins, be aware that lower air temperatures mean some oils may not vaporize fully, and using oils directly on or near infrared panels is not recommended. See the guide on oil use in infrared cabins for specific guidance.

If your steam system has a built-in aromatherapy port, follow the manufacturer's instructions on which formulations to use. As noted by MrSteam's remodeling basics, our sense of smell can immediately impact our mood, which is why many steam showers include scent control as a standard feature. Whether you choose a single traditional scent or a custom blend, keep the dose low and pay attention to how the room feels.

What to pick for your hot room

Questions

What is the most common essential oil used in saunas?

Pine is the most common in traditional Finnish saunas, while eucalyptus is the most common in steam showers. Both are traditional scents, not medical treatments.

Can I use any essential oil in a steam shower?

Only use oils or cartridges specifically designed for your steam system. Some steam generators have an aromatherapy port that accepts proprietary cartridges, as described by MrSteam. Raw essential oils can damage the generator over time.

How should I add essential oil to a traditional sauna?

Add a few drops to the ladle water before pouring it over the stones. Do not pour oil directly on the stones, as the concentrated burst of vapor can be overwhelming and the oil can leave a film on the stones.

Do sauna scents have health benefits?

No strong evidence supports health claims for breathing scented steam in a sauna. The scents are part of the traditional experience and can affect mood, but they are not treatments. Cleveland Clinic notes that research on sauna benefits focuses on the heat itself, not on added oils.

Can I use oils in an infrared sauna?

Infrared cabins operate at lower air temperatures, so oils may not vaporize as well. Applying oil directly to infrared panels is not recommended. A diluted aroma spray on the benches or a separate diffuser is a safer alternative. See the article on oil for infrared cabins for more detail.