Zephyr259
Landlord.
Thanks, I previously had a sample of Opshaug from the farm, I didn't get on with it as it was slow to ferment and had poor attenuation. Now that I know more I think I stressed it out with a high gravity fermentation when I forgot to add a bit of nutrients and the other batch was co-pitched with Roeselare blend and I'm suspicious that the acids it produced have made my refractometer reading unreliable.I'm not an expert as I'm on my first kveik, but I chose Opshaug for a strong pre-war bitter recipe because of the characteristics mentioned in the blurb:
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 91°F (33°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.
The Malt Miller appears to have it in stock. Fermentation is going strong in its fourth day, by the way, but the average temperature in my kitchen is less than 20C. No nasty smells from the FV.
Oh, I should mention that I have Voss, Hornindal, Saure, Ebbegarden and Espe available, the last 2 are still in a vial/dry and I haven't used them before.