Soothing Tea's food type is set to "GENERIC", im reporting this because it is the only generic type crockpot item, and it's a bit strange for it to have the "generic" type, because of this it appears as "Edible" in the Cooking book, instead of "Veggie" or "Goodie".
Perhaps it's meant to be a goodies food? As the line here setting it to a goodies food type is commented out.
1. Check the cook book
2. Notice Soothing Tea's food type is "Edible", inconsistent from other foods