The AirScape does a great job at keeping your roasted coffee fresh. Press the inner seal down to the level of your coffee, and push out most of the flavor-killing oxygen. The clear top lid also makes a seal. It's also good for brown sugar, cookies, tea, etc. It's a great choice for storing larger amounts of coffee.
The AirScape does a great job at keeping your roasted coffee fresh. Any other solid-walled container will allow oxygen to sit inside until the CO2 from the coffee can pushes it out. Regardless of how much or how little coffee is in there, you can always push the seal down to the level of your coffee, reducing the amount of oxygen.
The top lid also makes a seal. It's clear, but the opaque inner seal and restaurant grade 18/8 stainless steel walls keep light off of your fresh roast. It's top shelf dishwasher safe and has a 1 year warranty against manufacturer defects. The Airscape website says that it's also good for brown sugar, cookies, tea, etc.
We stored coffee in a few different containers for a month and opened them up daily, simulating how one would open up a container each time they brewed coffee. Month-old coffee will taste pretty flat no matter how well it's stored, but the AirScape did the best job at preserving what was left of the flavor. Whether you are exposing your coffee to oxygen on a daily basis or keeping it sealed up for a week or beyond, the AirScape will do a good job at flavor preservation.