Coffee Appreciation

I have a bialetti stove top and don't ever get a satisfying crema. Is it because I'm using ground coffee rather than grinding it myself?

I also find it's very easy to boil the coffee if not taken off the stove immediately.

try a Bialetti Brikka, which features a patented crema pressure valve. It works.
manually grinding is best just before brewing because cheap electric grinders get to hot.