Sauna customs in Sweden and Estonia: what actually happens

In Sweden and Estonia, sauna sessions involve multiple rounds of intense heat, birch branch beating, and cold water exposure, all done naked and followed by food or drink. The customs treat the sauna as a ritual with real etiquette, not just a hot room you sit in briefly.

If you've never experienced a sauna outside the United States, you might think it's just a hot room where you sit for ten minutes and leave. In Sweden, Estonia, and especially Finland, the sauna tradition runs much deeper. These countries have been doing this long enough that their customs have evolved into something closer to a ritual than a wellness trend.

Let me walk you through what actually happens in these saunas, because knowing the context changes how you approach the practice.

The Estonian sauna: smoke, silence, and birch

Estonians take their sauna seriously. The traditional Estonian sauna is a smoke sauna (suitsusaun), where the fire heats a pile of rocks for hours with no chimney. The smoke fills the room, coats the walls in soot, and when the fire burns down, the smoke is released. The heat that remains is gentle, humid, and deep.

Here is what an Estonian session looks like in practice:

• Preparation matters. You shower before entering. Soap, water, clean skin. This is not optional. You are entering a space that is treated with respect.
• The löyly is the point. Löyly is the Estonian (and Finnish) word for the steam created when you throw water on hot stones. It is not just humidity. It is the soul of the session. In Estonia, the water is often infused with birch or herbs. The sound, the smell, the sensation—it is all intentional.
• You beat yourself with birch branches. This is called viht in Estonian or vasta in Finnish. You take a bundle of fresh birch branches with leaves attached, and you gently (or not so gently) slap your body with them. This increases blood circulation to the skin, opens pores, and releases the scent of birch oil. Research has shown that birch leaves contain betulin, a compound with anti-inflammatory properties (Alakurtti et al., 2006, Journal of Ethnopharmacology).
• You go cold after. Jumping into a lake, rolling in snow, or taking a cold shower. This is not optional either. The contrast is the point. The cold closes the blood vessels, the heat opens them. Repeated exposure trains your vascular system to respond more efficiently.
• You repeat the cycle. Two to three rounds is standard. Each round includes heat, birch beating, and cold. Between rounds, you rest. Naked, wrapped in a towel, drinking water or weak tea. No phones. No conversation if you do not feel like it.
• You eat afterward. A proper sauna session ends with a meal. Smoked fish, rye bread, pickled vegetables. The body has worked hard. It needs fuel.

Estonian smoke saunas were added to the UNESCO Representative List of the Intangible Cultural Heritage of Humanity in 2014. That is not marketing. That is cultural recognition.

The Swedish sauna: less smoke, more social

Swedish sauna culture shares DNA with its neighbors but has its own character. The Swedish approach is generally less intense than the Estonian or Finnish version, and more social.

Key differences you will notice:

• The temperature runs lower. Swedish saunas typically sit between 70°C and 80°C (158°F to 176°F). Finnish saunas often run 80°C to 100°C (176°F to 212°F). The Swedish style is more forgiving for beginners.
• The cold exposure is still there. Swedes will do the lake plunge or the snow roll. But the timing is less rigid. You might do one cold plunge after the final round rather than between every round.
• Conversation is welcome. In an Estonian or Finnish sauna, silence is normal. Talking is fine, but no one expects chatter. In a Swedish sauna, people talk. It is a social space. You might discuss work, family, or politics. The heat loosens conversation.
• The sauna is often attached to the home. Many Swedish homes have a small sauna in the basement or a separate cabin. It is not a luxury. It is standard infrastructure, like having a washing machine.
• Fika can follow. Fika is the Swedish tradition of taking a break with coffee and something sweet. After a sauna, fika is common. The contrast between the heat of the sauna and the warmth of fresh coffee works surprisingly well.

What both countries agree on

Despite their differences, Swedish and Estonian sauna customs share several non-negotiable rules:

• No swimsuits. You sit naked. In public saunas, you sit on a towel. In private saunas, you sit on a bench that has been cleaned. The reason is practical: fabric traps sweat against your skin and prevents proper cooling. Nudity is not sexual in this context. It is functional.
• No shoes. Shoes bring dirt and bacteria into a space designed for cleanliness. Barefoot or sandals that stay outside the sauna room.
• No alcohol during the session. Beer after is common. Beer during is dangerous. Alcohol dehydrates you, impairs your judgment, and increases the risk of heat-related injury. Estonians and Swedes know this. They drink after.
• Respect the heat. Do not open the door repeatedly to let heat escape. Do not pour too much water on the rocks at once (the steam can burn). Do not sit directly above the stove. The person who built the fire controls the löyly. Ask before adding water.

What the research says about these customs

The Finnish sauna has been studied extensively. The Estonian and Swedish traditions share the same core mechanisms, so the findings apply.

A 2015 study in JAMA Internal Medicine followed 2,300 Finnish men for 20 years. Men who used the sauna 4 to 7 times per week had a 40% lower risk of cardiovascular disease death compared to weekly users. The relationship was dose-dependent. More sessions, better outcomes.

The cold exposure part matters too. A 2016 review in Scandinavian Journal of Medicine & Science in Sports found that cold-water immersion after heat exposure improves circulation, reduces muscle soreness, and may support recovery from exercise. The mechanism involves vasoconstriction followed by vasodilation, which trains your blood vessels to respond more efficiently.

The birch branch beating? Not just tradition. A 2014 study in European Journal of Applied Physiology found that mild mechanical stimulation of the skin (similar to what happens during viht) increases blood flow to the skin surface and may enhance the body's ability to regulate temperature.

How to apply this if you are not in Estonia or Sweden

You do not need to move to Northern Europe to benefit from these customs. Here is what you can take from them:

1. Shower before you sauna. Clean skin sweats more efficiently. Soap removes oils and dead skin that trap heat against your body.
2. Go cold after. If you do not have access to a lake, a cold shower for 30 seconds works. The contrast is what matters.
3. Use birch if you can find it. Fresh birch branches are available seasonally. Dry birch can be soaked in water to soften. The scent alone has been shown to reduce cortisol levels (Matsubara et al., 2011, International Journal of Environmental Research and Public Health).
4. Do multiple rounds. One round is fine. Three rounds is better. Rest between rounds. Hydrate.
5. Leave your phone outside. The sauna is a rare space where you are not expected to be productive. Let it be that.
6. Eat after. Your body has been working. Give it protein, electrolytes, and carbohydrates.

None of this requires a specific brand of sauna or a membership to an expensive spa. It requires intention. The Estonians and Swedes have been doing this for centuries. They figured out what works. The science is just catching up.

Frequently asked questions

What is a smoke sauna and how does it work?

A smoke sauna, called suitsusaun in Estonian, heats a pile of rocks for hours using a fire with no chimney. Smoke fills the room and coats the walls, and once the fire burns down the smoke is released. The remaining heat is described as gentle, humid, and deep.

What is löyly in sauna culture?

Löyly is the steam created when you throw water onto hot stones. In Estonian tradition the water is often infused with birch or herbs, making the sound, smell, and sensation all intentional parts of the session. It's considered the soul of the sauna rather than just added humidity.

Why do people beat themselves with birch branches in the sauna?

The bundle of birch branches used for this is called viht in Estonian. Beating the body with it increases blood circulation to the skin, opens pores, and releases the scent of birch oil. Research cited in the article found that birch leaves contain betulin, a compound with anti-inflammatory properties.

How does Swedish sauna culture differ from Estonian sauna culture?

Swedish saunas typically run at a lower temperature than Finnish or Estonian ones, making them more approachable for beginners. The atmosphere is more social, with conversation being welcome, whereas silence is the norm in Estonian sessions. Swedes may also do a single cold plunge after the final round rather than between every round.