Originally Posted by
Geezer
I have been taught that beans that are ground should set a few days and then be good brewing for ten days..
Bitter brew is too hot a brewing water for the particular beans and Sour brew is using too cool a water for the beans.
Darker beans require less heat to bring out their flavor, Lighter beans require hotter brewing water.
Buying your own green and roasting them yourself can remove some of the difficulties. It took me a year before I could consistently roast beans to the levels I prefer. Also, buy only a couple weeks' supply of green. It does get stale and dries out, leaving less flavor to enjoy. You may decide that you don't like the beans and so they go to waste.
As to costing for a setup, there are established coffee parts houses that offer a bundle of grinder and machine at a significant saving. Even better when they offer a discount code along with it!
JMO
~Richard