Friis Coffee Canister
The Friis Coffee Canistor keeps your coffee fresh by locking in flavor while blocking out light air and moisture. The Friis Freshness Valve vents away flavor destroying CO2 gas.
When stored in a cool dry place your coffee stays fresh longer.
Capacity 16oz/450g of coffee.
The patented Freshness Valve is the key to eliminating trapped CO gas. The valve is constructed with a unique filter that allows carbon dioxide gas to pass through without allowing oxygen or other gases back in. This one-way valve removes the trapped gas that breaks down and destroys coffee flavor over time.All coffee is roasted both whole bean and ground.
This roasting process heats the coffee bean and caramelizes the sugars in coffee. It is this roasting process that creates the flavor degrading gas. Coffee is perishable much like fruit milk or bread -- keeping coffee fresh is very important. Without a freshness valve coffee can not be kept fresh.With Friis save money and keep your coffee fresh.
Holds 16oz or 450g of coffee.
Difficult to objectively assess real benefit over simpler airtight containers, but the coffee does smell fresher over a longer time, so it seems to work.
This was a gift, together with the spare valves, so have not used it myself but my research and first impression leaves no doubt it is probably the best product in this category in the wider market place.