Key Findings
Researchers from the discovered that a high pour with a thick, laminar water jet improves the mixing of water and coffee grounds, resulting in a stronger coffee with fewer beans.
The study emphasizes the importance of avoiding a thin water jet, which breaks into droplets and fails to mix the coffee grounds effectively, compromising the coffee's strength and sensory experience.
Methodology and Future Directions
To visualize the mixing dynamics, scientists used laser-illuminated transparent particles in a glass funnel, alongside actual coffee grounds, to study the impact of the water jet on the coffee bed.
While the researchers do not plan further studies on coffee, they acknowledge the potential for exploring other parameters, such as the size of coffee grounds, to enhance the brewing process.