Is tofu supposed to smell like manure?

I bought tofu for the first time and I bought two packages. One smells normal, the other smells super super horrid, like cow manure. The only difference between the two packages is that the smelly one says "firm" and has an extra ingredient, which is calcium chloride I think. I heard that there is "stinky" tofu, but the package does not say anything about this. Also, the expiry date is for June, so it's definitely not supposed to be expired yet.