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Kveik
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[[File:Kveikstokk.JPG|thumb|300px|right|Kveikstokk with yeast slurry on it. Images provided by [https://www.facebook.com/groups/MilkTheFunk/permalink/2237938229567712/ Antonio Golia ("Homebrew Condor").]]]
As Norwegian farmhouse brewers only brew 2-3 times per year, kveik has adapted to being dried and stored for long periods of time in-between usage, which is unique among most domesticated yeast <ref name="garshol_preiss_mbaa" />. Wooden carvings are used to store dried kveik. Their use is simple: drag the kveik ring (also more broadly known as a "Twisted Torustwisted torus" <ref>[https://www.academia.edu/38819003/Scandinavian_Yeast_Rings_-_the_curious_case_of_the_Twisted_Torus "Scandinavian Yeast Rings - the curious case of the Twisted Torus". Susan Verberg. 2019.]</ref>)/kveikstokk through the krausen of a fermenting beer, and then hang the ring/kveikstokk to dry. On the next batch, the ring/kveikstokk is dunked into wort to reactivate the yeast <ref>[https://www.facebook.com/groups/MilkTheFunk/permalink/1505143962847146/?comment_id=1505145579513651&reply_comment_id=1505163232845219&comment_tracking=%7B%22tn%22%3A%22R%22%7D Lars Marius garshol. Milk The Funk Facebook group post about using a kveik ring. 2017.]</ref>. Note that not all yeast reacts well to drying. Kveik has this exceptional ability. For example, ''Brettanomyces'' is known to not be tolerant of drying/desiccation <ref>[https://www.facebook.com/groups/MilkTheFunk/permalink/2237938229567712/?comment_id=2237959286232273&comment_tracking=%7B%22tn%22%3A%22R%22%7D Justin Amaral. Milk The Funk Facebook group post on kveikstokk and drying ''Brettanomyces''. 08/16/2018.]</ref>. Dried kveik should be stored in the freezer, and has been known to last at least 20 years in this way. Frozen, dried kveik should be thawed and simply added to a liter or so of ~30°C (86°F) wort for 2-4 hours before adding that to the main batch of wort <ref name="garshol_preiss_mbaa" />.
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