Not a big coffee drinker, but do like it on cold days, so what's wrong when..

the coffee I make tastes a little sour? Is it too much coffee grounds?

The standard I use is one tablespoon for one less cup of coffee (for example, six tablespoons for seven cups).

But the coffee tastes a bit.....sour.

I don't drink it often and I'm sure real coffee drinkers will be offended, but I just don't drink a whole lot (though it's not that old - family and stuff drink it up....)

thank you in advance..

Ground coffee just does not have a good shelf life. Most hard-core drinkers will agree that within a few days of being opened the flavor starts changing notably. Some say that storing it in an air-tight container solves that, but it doesn't- there's still air in the container, and if you open it at all....

Personally, I buy my coffee in small quantities- enough to last me for a week or less.

On edit: If you don't drink it regularly, I'd consider buying the small, vacuum-sealed packages that are enough for one pot.

For best flavor, use within 2 weeks. You can stretch the shelf life of any coffee (another week maybe) by putting it, packaging and all, in a ziploc bag with as little air as possible and storing in a cool, dark place. I use a novelty popcorn tin with lid. Despite the common advice, never freeze or refrigerate coffee; the resultant moisture and ice-crystals will destroy your coffee.

The shelf-life of an untreated coffee (that is, one which has not been bombarded with nitrogen to prevent oxidization: Any whole bean coffee sold by weight.) is one week in bean form, 72 hours ground...maximum; we use within 8 hours in-shop, advise customers to invest in a grinder and grind to use. Personally, I use ground coffee at home no older than 24 hours.

Sour coffee always means the ground coffee is too old.

Chan790
(Former)Member, Barista Guild
Certified Coffee Master

I'm no expert- Just know what I taste when the coffee gets to be a few days old!

mega-dittos on the freezing thing! Talk about nasty- coffee that's been in and out of a freezer for a year :puke:

Brand & roast.

Did you add milk/sugar?