They are vacuum sealed and nitrogen flushed, reducing the oxygen level inside to no more than a 0.2% (remember that air is one of the enemies of coffee freshness). The one-way valve allows the coffee to continue to release carbon dioxide for several days after roasting. If not released, this excess carbon dioxide can cause the seals to burst open and freshness to be lost.

All of these things make our packaging specially designed to ensure freshness until you are ready to use it. Simply pull the tab or open the bag to release the full flavour and aroma.