What You Need to Know
Lipolysis and proteolysis occur slowly at low temperatures (2-10°C), with Maillard reactions limited by minimal solar radiation. Glutamic acid concentration increases 3-5x through moisture loss.
Creates shelf-stable protein with intense umami and chewy texture, foundational to Nordic lutefisk and Portuguese bacalhau dishes.
Key Parameters
Temperature
8°C
-5°C - 15°C
Time
6-8 weeks
3 weeks - 3 months
Equipment
Wooden drying racks (hjell)Saltwater brine tanksNetting for bird protection
Steps
- 1.
Lutefisk (Norway/Sweden): Base for lye-reconstituted dish
- 2.
Bacalhau à Brás (Portugal): Provides shredded protein backbone
The Science
Primary Reaction
Non-enzymatic protein denaturation