/ck/ - Food & Cooking

Question: what am I doing wrong?

I bought and grounded some luckys market coffee beans on auto drip setting, since it's a basic drip machine. But the brew tasted bitter like it got over extracted. I used two table spoons for 9oz of coffee.

I thought I would get a good cup since the ground was better. The coffee I tried in it before was Lavazza classico which was a espresso grind and resulted in a slightly sour brew.

Shouldn't it have been reversed? Thre Lavazza bitter and luckys sour?