They're not rated highly, something like 40,000 Scoville units. I'd say taste one raw, and see how you feel about it. Everyone has different levels of heat. I munch on Habaneros chillies on salads (300k SCU), yet some people piss their pants eating a jalapeno (5k SCU). Depends what you are used to, and what you like. I once made a chilli with a Bhut Jolokia and it was the worst thing I have made; sometimes you can make stuff too hot, so taste one, then decide from there. They are smoother, less hot, if you deseed them too, so factor that in.