What You Need to Know
Coarse coffee grounds are boiled directly in water, leveraging heat and time for extraction. Eggshells (calcium carbonate) or cold water act as flocculants to settle grounds via charge neutralization.
Survivalist brewing that prioritizes function over finesse, producing a strong, gritty cup.
Key Parameters
Temperature
96°C
92°C - 100°C
Time
3 min
2 min - 5 min
Equipment
Cast iron potHeat source (open flame)Stirring stick
Steps
- 1.
Trail coffee (Cattle drives): Stimulant for endurance
The Science
Primary Reaction
Maillard reaction (pyrazines, furans)