https://curbarchive.journalism.wisc.edu/2012/prepare-lutefisk/index.html
" In Norway, the cod is dried out on big racks in open air. It should be cold enough so the cod does not rot, but not so cold that it freezes.
Once the fish is dry, it becomes very leathery. Then the fish is ready to be shipped anywhere.
When you receive the fish, you must first soak the fish in cold water for three to seven days. Keep changing the water, and after a few soakings, you then soak it in a lye solution.
Then you start the water treatment process all over again! Rinse it and soak it for another four to six days, so then it is finally clear of lye."
My father made it several times at Christmas. Served it with potato sausage, potatoes, white sauce. I was not that fond of it. (Was still too young to drink!) I had potato sausage one year at christmas. Was not the same as the sausage as when I was young.
Article on Lutefisk. The author, Joseph Pugliese, liked it!
https://preservingthenorthsea.com/2022/10/traditional-lutefisk/
