What You Need to Know
The process involves filling a siphon with a liquid, typically a flavored syrup or coffee, and adding a charge of nitrogen or CO2 to create a pressure difference. The ideal temperature for foam formation is between 4°C to 10°C (39°F to 50°F), and the time it takes to create a stable foam can vary depending on the type of liquid and desired consistency.
The Science
Primary Reaction
nucleation and stabilization of air bubbles