Coffee is volatile. The moment it leaves the roaster, it begins to die. Oxygen attacks the delicate lipids, killing the crema and the flavor. This technical report analyzes the thermodynamics of coffee staling. We explore how the Jialong coffee vacuum packaging machine creates a "skin-tight" anaerobic environment. Learn why the vacuum brick for coffee is the only reliable coffee bean storage technology to prevent coffee oxidation and preserve coffee aroma for international export.