the very recent coffee beans I’ve been buying are not giving me proper rich coffee. I am so confused if the problem is with the beans or something I do. so I want to explain how I brew my coffee: I grind my whole coffee beans right before brewing and I use a french press and infusing about four minutes. the last 3-4 coffee beans I’ve been getting just do not bubble while brewing and the coffee grounds just settle at the bottom of the french press. and the coffee almost doesn’t have any flavor and it is very thin. what do you think?