Sima is therefore a sweet sparkling beverage that is mainly seasonal and connected with the Finnish Vappu festival.
Sima is usually accompanied by a munkki (donut), a tippaleipä (a special Vappu funnel cake), or a rosetti (rosette).
The Finnish word sima is an old name for honey, which Elias Lönnrot used to mean a drink in his epic poetry, the Kalevala.
Sima's usual ingredients include lemon, active dry yeast, and raisins.
Because of this, traditional sima is a fresh product that does not store for long; fermentation may continue in a bottle and the alcoholicity may rise.