What You Need to Know
Utilizes sand's high thermal mass and low specific heat to slowly dehydrate tissues through conduction rather than air convection. Sodium-rich desert sands may impart mineral preservation effects.
Creates intensely concentrated flavors while preventing microbial growth through low water activity (aw < 0.6).
Key Parameters
Temperature
65°C
45°C - 85°C
Time
3-5 days
36 hours - 14 days
Equipment
Shallow stone-lined pitsWoven palm-fiber mats (as food separators)Animal bladder moisture barriers (optional)
Steps
- 1.
Fesikh (Nile Delta): Preserves mullet for months without refrigeration
- 2.
Taguella (Tuareg tribes): Dehydrates wild tubers for caravan provisions
The Science
Primary Reaction
Non-enzymatic dehydration