Roasted coffee beans: a carcinogen food?

Coffee beans are NOT a problem, like cacao beans and they were probably chewed py our ancestors who would have recognized their adaptogen properties.
The problem is roasting and especially industrial roasting at high temperature (>300°C). It brings in your body acrylamide and other molecules which are true carcinogens.
Slow roasting is preferable, but green tea is a safer source of caffein...