In Spain, we have surprisingly often come across the same idea: that sauna means wasting water. This is an understandable concern in a country where dry periods are part of everyday life and water resources are a constant topic of discussion.

Still, this perception of sauna is simply not true.

We also have personal experience of this. Winters in Spain can feel surprisingly cold, especially in homes without a proper heating system. Many people become familiar with the habit of warming themselves up with long, hot showers. It feels like an easy solution, but at the same time it uses a great deal of water.

On average, one shower uses about 10–15 liters of water per minute.

If a person stays in the shower for 8–10 minutes, water consumption can easily reach 80–150 liters in a single session.

In a sauna, the logic is completely the opposite.

When the body is warmed up gradually in a sauna, the need for a long, hot shower disappears. In the end, it is enough just to rinse off the sweat, and often about 10–20 liters of cool water is more than enough. At the same time, the heat from the sauna remains in the body, and the feeling of warmth lasts for a long time without the need for continuous water use.

When used properly, a sauna can significantly reduce water consumption.

A hot day, a cooler feeling

Perhaps the most surprising insight has to do with summer and hot days.

The idea of going to a sauna at the end of a hot day may seem contradictory. Why go somewhere hot when you are already hot?

But the body works differently from how we often imagine.

Sauna activates the body’s own cooling system. When the body heats up properly, it starts cooling itself more efficiently through sweating and circulation. As a result, after the sauna you feel lighter, fresher, and even cooler. Many people also notice that they sleep better, even when the night is tropically hot.

It is about understanding, not assumptions

A sauna is not a waste of water.

Nor is it unnecessary luxury.

When responsibly designed and used, a sauna is actually one of the smartest ways to combine well-being, comfort, and the sensible use of resources.

A sauna can even be a brilliant solution for reducing water consumption.