How Do We Smell Something That's Poisonous?

Most of our discussed reactions are automatic and cross cultural, and have nothing to do with learning anything. And you can even look at thi from an evolutionary perspective, from time frame. So when we eat something that's poisonous, we spit it out basically as soon as it's in our mouth. But if you eat something that is not poisonous, it takes time for that, you know, the cloric value to register. Said, willi let me eat this chocolate? Maybe i like as compared if it's poisonous? Ri what was that getin?