Ah, well, but that’s referring to a feculANT not to something that is feculENT. I can’t find the spelling with an A, it’s not in OneLook, but it is obviously an additive for causing feculency. Something like rennet I should think.

Feculent
· (a.)…abounding with sediment … thick; turbid.

Can’t you just ‘feel’ the texture?