This article is from the Nordic countries FAQ, by Antti Lahelma and Johan Olofsson, with numerous contributions by others.
This varies according to the bathers' wishes. Usually the
temperature is between 60°C and 110°C, the widely-agreed-upon
ideal temperature being somewhere around 85°degrees. Sometimes
(after a few drinks) Finnish men engage in an unhealthy
competition over who can stay in a hot sauna the longest time.
This is not the way sauna is meant to be enjoyed, not to
mention that it can be dangerous. Also, you shouldn't be drunk
in sauna. A cold beer after sauna, however, tastes usually
great, even a mediocre brand.
 
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