JonBrew
Landlord.
Sounds like the kveik yeast has fought the good fight but is now done. I'd be inclined to use champagne yeast to bottle condition this megaloden esque stout. I think most champagne yeast are rated up to 18‰ abv.
The safale F2 data sheet says over 10% but not sure how high it would actually tolerate.
The safale F2 data sheet says over 10% but not sure how high it would actually tolerate.