As someone who genuinely enjoys really hot hot sauces, I've noticed that most of my favorites, regardless of Scoville rating, have water as the first ingredient. My all time favorite, to date, does.
I dunno if it's just me, but it seems like hot sauces with water as the first ingredient have more and/or better flavor, as opposed to those where the first ingredient is whatever variety of pepper (usually followed immediately by water, but still). The latter (pepper first) don't JUST taste hotter to me, although obviously they do; they taste like a concentrate that's supposed to be used in an already high volume of water, like in soup, and like they ruin the flavor of whatever dish otherwise.
I've experimented with this, and sure enough, the pepper first sauces do go very well in soup, and that's it AFAICT. I don't mean a drop in a whole pot of soup; I mean a generous amount in a whole pot of soup, but also where a drop completely ruins the flavor in some cases if it's applied directly.


