100g/200g/500g coffee bag with Valve And Tin Tie

coffee bag with a valve and tin tie ： Valve Technology: The degassing valve in these bags is usually one-way. It lets out the CO2 released by the beans but prevents oxygen from entering. This is crucial because oxygen can degrade coffee and make it stale faster. Tin Tie Benefits:  Besides resealing, tin ties are simple to use and don't require any additional tools. They also create a fairly tight closure, further protecting the coffee from air exposure. Material Considerations: These bags...