Coffee Exhaust Valve – The Key to Preserving Roasted Coffee Bean Freshness
Why Do Roasted Coffee Beans Need a Coffee Exhaust Valve?
Freshly roasted coffee beans naturally release carbon dioxide (CO₂) for several days after roasting. If this gas remains trapped inside a sealed coffee bag, it can cause:
☕ Coffee Bag Expansion & Bursting – Excess CO₂ buildup may damage packaging.
☕ Oxidation & Flavor Loss – Exposure to oxygen can lead to stale, bitter coffee.
☕ Moisture Contamination – Unsealed bags can let in moisture, affecting coffee quality.
A coffee exhaust valve, also known as a one way degassing valve, air valve, aroma valve is designed to prevent these issues by allowing CO₂ to escape while blocking oxygen and moisture from entering the bag. This ensures that coffee remains fresh, aromatic, and flavorful for a longer period.
