If you care about freshness and preserving the overall quality and rich flavors of your coffee for as long as possible, it’s clear to see that the vacuum sealed or metallized bags are the better option. These modern kinds of bags are designed to preserve freshness for as long as possible, locking in the flavors of your coffee and ensuring you’ll always get the same great standards in every cup. Paper bags are generally better for the environment as they can be recycled easily, but they won’t keep the coffee quite as fresh.