Why are the bags of coffee beans sometimes puffy?

It is completely normal for our bags of coffee beans to appear inflated. This is not a sign of a problem or spoilage, but a natural process that takes place after the coffee beans have been roasted. Below, we explain why this happens and why it is actually good for the freshness of your coffee.

Coffee beans release CO₂ after roasting

After roasting, coffee beans release a small amount of carbon dioxide (CO₂). This process, known as 'degassing', is a natural by-product of roasting. The released CO₂ can cause the bag to become inflated at times.

One-way valve preserves freshness

Our coffee bags are fitted with a one-way valve on the front. This valve allows CO₂ to escape from the bag but prevents oxygen and other air from entering. Oxygen is the biggest enemy of fresh coffee; it accelerates the oxidation process and diminishes the flavour. The valve helps the coffee stay fresh for longer.

Why does the bag sometimes remain inflated?

On some bags, the valve is slightly tighter, which means the CO₂ is released more slowly. This can cause the bag to stay inflated. This does not affect the quality or freshness of the coffee. In fact, the remaining CO₂ in the bag helps to protect the beans from oxygen and keeps them fresher for longer.

Conclusion: no reason for concern!

An inflated bag of coffee beans simply means the coffee is fresh and still releasing CO₂. This process is completely natural and a sign of quality. Open the bag as usual and enjoy the delicious taste of our freshly roasted coffee beans!

Do you have any further questions? Please feel free to contact us!