lavrøyk
Lavrøyk is a Norwegian term that can refer to two related concepts. Primarily, it denotes the smoke produced when washing clothes in a traditional Norwegian manner, specifically using lye (lav). This process involved boiling fats and ashes, creating a strong alkaline solution called lye, which was used for cleaning. The steam and fumes generated during this boiling and washing were considered lavrøyk.
Secondly, lavrøyk can also refer to the general practice of using smoke for purification or preservation. This
Historically, the use of lye for cleaning was a widespread practice before the advent of modern detergents.