I recently stumbled upon tripe at my local grocery store. I bought a bunch of it and put it in the freezer. The other day, I made some menudo. I noticed that the tripe smelled like barn (like wet hay and dirt). I thought boiling it would clean out some of that smell, but it didn't. The soup tasted like a barn. I've had tripe elsewhere that didn't have much of a smell at all, so, I'm wondering what the problem was.
The tripe looked very clean and I rinsed it off thoroughly. Is there any other cleaning that needs to be done to take care of the odor? Had the tripe gone bad? Any ideas?