I used Sweet Maria's oven roasting method - Gas mark 9 (500 degrees) to roast the green beans for about 10 minutes - the roasted beans and grounded coffee came out looking roughly the same colour as store bought beans / ground coffee, but the taste! WOW! Soo smooth and divine, with LOTS of crema , when compared to store bought beans that tasted SO bitter. (Admittedly the store beans were a couple of weeks old). Definitely a must try if you are setup with your own bean grinder and coffee maker then you absolutlely HAVE to try roasting your own coffee beans! You can view the original photos here .