Beware - the snob hordes are about to descend on this!
Bear in mind that this site is dedicated to people who are quite passionate about their coffee when reading some of the replies that youre bound to get.
As a rule when it comes to supermarket coffee, youll see a "Use By" or "Best Before" date. This is compared with a premium roaster from whom youll see a "Roasted On" date.
The difference? Premium roasters will send you a product thats fresh - roasted within the last two days. Supermarket coffee will generally be at least a month old, and pretty shot to hell. Admittedly there is a large cost difference, but its for a reason.
Having said that, its horses for courses! Tell us a little bit about your coffee journey - are you just getting started, what do you like to drink etc.