WLP518 OPSHAUG KVEIK White Labs Liquid Yeast New Strain FROM THE VAULT

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About WLP518 OPSHAUG KVEIK White Labs Liquid Yeast New

Sourced from our friend Lars Marius Garshol, this kveik strain was isolated from a mixed culture which belonged to Harald Opshaug, a farmhouse brewer in Stranda, Norway. This strain was originally used in the 1990s to produce several kornøl-style beers. It is a clean fermenting yeast and has tolerated temperatures up to 95°F (35°C) while finishing fermentation within three to four days. The hop-forward, clean characteristics of this strain make it ideal for IPAs and pale ales. Opshaug used the strain for years, brewing kornøl-style raw ales with juniper branches and kveik like other brewers in the area until he was exposed to modern brewing theory, which teaches that this method of brewing is wrong. In an effort to stay current, Opshaug switched from the kveik to a commercially available strain, but he couldn’t bring himself to get rid of the kveik which he calls “the good sort” so he made it a point to keep it alive throughout the years. Kveiks are known for their high-temperature tolerance and WLP518 Opshaug Kveik Ale Yeast is no exception. Opshaug often pitched the yeast at 73-75°F (23-24°C), but the strain has handled up to 95°F (35°C). He would harvest yeast from the top after 30 hours, and the beer would be finished after 48-50 hours.