Well - Jstpssng - being more or less a bread product - lefse should store well in the refrigerator. It's a thin potato pancake. Now Lutefisk - that is a WHOLE different story. The smell when cooking the fish - described by the uninitiated - boiling or baking rotten dead bodies. The taste/flavor - definitely an acquired situation here. I like/enjoy well prepared Lutefisk - most won't go beyond the smell and try a small bite. I belong to the Sons of Norway chapter in Spokane. I enjoy a good Lutefisk, lefse & trimmings meal during the holidays every year. Sometimes - 2 or 3 times during the holidays.
My wife ABSOLUTELY refused to cook or try Lutefisk. The more than obvious green pallor was just a prelude to her vocal refusal. It's like good Japanese Kim Chee - you either like it or stay away from it.
It was the potato part which really piqued my interest... I should have a bumper crop this year and am looking for different ways to use them. A few years ago somebody gave a recipe for potato sausage (not the real name for it) which also sounded interesting. I like cooking things which provide me with several easy meals.
as for the other; I've never boiled, baked, or even grilled a rotten dead body. I think for now that I will keep it that way.