Uhh, pre-grinded coffee with no roasting date. No offense, but this is some of the worst choice. After opening the bag literally within a day you lose too much of flavour and with each days more and more. This is because on air the grinded beans in 10 minutes they lose significant flavour (emmiting CO2 and with it the flavour too). 2 weeks after roasting the beans (non-grinded) on normal temperature and on air are losing real fast it's flavour (that's why we store it in the freezer). Let's suppose that after they roasted instantly they grinded the coffee, but as soon as you open the bag, your clock starts ticking... the way better option is to buy a really good grinder (the most important stuff) and the roasted coffee is not more than 2 weeks old. Feel free to ask any question if you're interested.