I frequently eat these Madeleine pastries, and then drink filtered tap water after. For some reason, this sometimes creates an off-putting, "grassy" aftertaste. Does anyone have an explanation for it?
Here's the ingredients list for the Madeleines:
Untreated and unbleached enriched wheat flour • Eggs • Sugars (white sugar, liquid invert sugar) • Soy, palm, modified palm and modified palm kernel margarine • Water • Baking powder • Whey powder • Natural and artificial flavors • Sodium propionate [preservative].
I live in southern Ontario so the water has some minerals in it, although we have a filter which should be removing most of it.
The aftertaste is hard to describe, something like the smell of grass and iron.