I read In Cod We Trust last year. If I remember correctly, the book said that they no longer make Rakfisk in the traditional way due to the botulism risk. However, I don't recall what the new method is.
On a side note, making your own Rakfisk is pretty hardcore!
Uff Da Picobrewery
Kegged: Vienna Lager, Mánagarmr Stout, Ratatoskr IIPA, Cider
Bottled: Yule Gruit