Black honey leaves essentially all the mucilage on the bean during drying, and dries it as slowly as possible — often under shade or cover.
The grades again
White (10–25 % mucilage), yellow (≈ 50 %), red (≈ 75 %), black (≈ 100 %). More mucilage and slower drying means more fruit character and more risk.
The cup
Heavy and syrupy with pronounced fruit and a deep sweetness — closest of the honey grades to a natural, while keeping more clarity because the skin was removed.
Why it is demanding
A thick sugary coating drying slowly is an ideal environment for mould and uncontrolled fermentation. Beds must be turned frequently — sometimes hourly in the first days — and the whole process watched.
That labour is why black honey lots cost more than red or yellow from the same farm.
Where it comes from
Costa Rica developed the terminology and the technique; it is now used across Central America.
Brewing it
Filter at light to medium roast, or an immersion where the body carries.