Many canisters compared, 3 different styles (air tight, displacement, vacuum)
coffee aged 6 weeks, results were all very close in cupping, vacuum ones were a bit better
With espresso, vacuum made a bigger difference - less channelling, slower shots, more crema
At 8:20 he compares each individual unit tested
So if you're having issue with stale beans, or at least you think you are, maybe switch to vacuum containers. Otherwise, resealable bags or displacement containers are good. If you go through your beans slower, freeze it in 2 week batches in a sealed container. You only want to take it out of the freezer ONCE. Once that container is unsealed, you should not put it back in.