Read an interesting article and I was surprised to see that many people describe cilantro (coriander to some) as tasting like soap. The first time I ever experience cilantro I was at least 21 and flew to Southern California to visit a friend that moved there. I reacted strongly against it, and told my friend SOMETHING on our food tastes like soap! I even broke into a sweat.
This article claims that it could very well be linked to genetics. However, I will say that after my encounter, I was more willing to experience it and now love it and do not experience any taste of soap. In fact I like it so much I've made pesto entirely of cilantro and it was a hit with friends. I couldn't imagine Mexican or Indian cuisine without this lovely herb.
So as the article says to those of you that taste soap, it's ok, it's genetic! Poor souls.