Store roasted coffee properly
In our experience, roasted coffee tastes best 3 to 10 days after roasting. Then he gets flat. You should store the roasted coffee in a dark, hermetically sealed can or bag - at best with an aroma protection valve. Fill as much coffee as possible in your mill or your fully automatic, as you need right now.
If possible, drink ground coffee for 30 minutes after grinding.
So, if you want to enjoy coffee with all its nuances, flavours and aromas, then you should either buy it from a small roasting company that tells you where it comes from, what's in it and when it was roasted - or just roast it yourself!