Honey Process Coffee: What the Colours Mean
Honey process coffee contains no honey. See how mucilage, drying and the white to black colour scale shape the cup, and who should buy it.
Honey process coffee has no honey in it.
The name refers to the sticky, sugary fruit layer (mucilage) left on the seed while it dries, which is why these coffees usually taste sweeter and rounder than washed coffee but cleaner than a full natural. Buy one if you want that middle ground, and do not trust the colour name alone to tell you what is in the bag.
What "honey" actually describes
A coffee cherry has a skin, a layer of pulp, a slippery coat of mucilage, and then the seed in its papery parchment. In washed processing the mucilage is fermented off or scrubbed off before drying. In a natural, the whole cherry dries intact. Honey processing sits between them: the skin and pulp are removed by machine, but some or all of the mucilage stays on the parchment while the seed dries. The name is sometimes explained by the sticky look of the mucilage on drying beds or by the sweetness in the cup, but its origin is not firmly documented.
It is not new. Wikipedia traces the method, called pulped natural in Brazil, to trials at the Instituto Agronômico de Campinas in the early 1950s, with commercial use in southern Minas Gerais from the 1980s. Coffee Review credits Brazil with pioneering it and Costa Rica with popularising the word "honey" during its micro-mill boom, when small producers began running their own mills. A second attraction is water: honey processing uses far less than conventional wet milling, because machines remove the pulp with only a little water.
The colour scale, and why it is unreliable
Producers label honey lots white, yellow, red or black. The general idea is that darker means more mucilage left on, more time drying, and therefore more sweetness and body. The numbers behind each name, however, differ from source to source:
| Name | Mucilage left on, as reported | Drying time, as reported |
|---|---|---|
| White | About 10% (Coffee Review) | 3 to 4 days at one Costa Rican mill (Café Imports lot sheet) |
| Yellow | Part removed mechanically (Wikipedia); 20 to 50% removed (Coffee Review) | 8 to 10 days (Wikipedia); about 1 week at one mill |
| Red | Half to three quarters (Wikipedia); all or nearly all (Coffee Review); 75 to 80% in one research trial | 12 to 15 days (Wikipedia); 7 to 15 days at one mill |
| Black | All or nearly all | Around 30 days (Wikipedia); 15 to 20 days at one mill |
The importer Café Imports says the term and its variations vary from mill to mill, and Chris Kornman of Royal Coffee has written that there are no standard definitions, so one producer's honey may be another's semi-washed (both as quoted by the roaster Jayarr). The mill in that lot sheet itself calls its white honey semi-washed. Some mills set the colour by taking off a measured share of mucilage, while others leave all of it on and change how the coffee is dried.
The practical point: the name is a hint about the producer's intent, not a lab measurement. Read the roaster's tasting notes and processing description rather than assuming "red" means the same everywhere.
What it tastes like
The consistent description from trade sources is a cup with natural-style sweetness and body but more clarity than a full natural. Importers describe the range as running from yellow, the mildest and closest to washed, to black, closest to Brazilian pulped natural, with notes such as jammy or stewed fruit, caramel or burnt sugar, and a heavy body with lower acidity. A Coffee Review tasting of honey coffees found white honey expected to be the brightest and cleanest, and its highest-scoring samples showed natural sweetness, a smooth mouthfeel and clean, bright acidity. It also noted that Brazilian honey or pulped natural coffees are lighter in body than typical Brazilian naturals, with more brightness and floral and stone-fruit notes.
Science has begun to back the idea that mucilage amount matters. A 2025 study of arabica honey processing with different mucilage retention found that the red group, at 75 to 80% retention, had the highest relative content of volatile aroma compounds in the green beans, and the authors judged it best for aroma. That measures green coffee chemistry, not the cup, and it covers one trial, so it supports "more mucilage changes aroma" rather than "red is best".
Where it goes wrong
Leaving sugary fruit on a drying seed invites trouble. It needs constant turning on the drying bed or the seeds stick together, especially for black honey. Café Imports says honey drying carries less risk of spoilage, mould and other defects than drying whole cherries, but exposed fruit still takes extra labour to prevent taints. In the Coffee Review tasting, two of four black honeys tasted heavy and woody, a character the reviewer linked to coffee dried in the fruit too slowly, two were flat, and one coffee carried a faint brandy-like ferment. Honey lots also varied more from cup to cup than washed coffees from similar places. Green honey beans can look uneven, which some roasters dislike.
Who it suits
| You like | Look for |
|---|---|
| Washed coffee but want more sweetness | White or yellow honey |
| Natural coffee but find it too winey or heavy | Red honey |
| Heavy, syrupy, low-acid coffee | Black honey, from a roaster who describes the lot in detail |
| A very clean, tea-like cup | Stay with washed coffee |
| Strong fruit and fermented notes | A natural, or an anaerobic lot |
Skip honey process if you pay a premium expecting a particular flavour from the label. It is a process, not a quality grade, and a careless black honey can be worse than a well-made washed coffee. If you are unsure, start with a Costa Rican or Brazilian lot from a roaster who states the drying method and mucilage level.
Brewing it
There is no agreed recipe. As an editorial starting point, brew it on whatever you use for a washed coffee, then adjust: if it tastes heavy or sticky, grind slightly coarser; if it tastes flat, grind slightly finer or raise the water temperature a little. The general method for changing one variable at a time is in the grind size guide.
Questions
Is honey processed coffee vegan?
Yes in the ordinary sense: no honey or other animal product is added. The "honey" is the plant's own fruit layer.
Is honey process coffee good for espresso?
None of the sources opened for this page tie the method to espresso. Treat it like the washed or natural coffee it most resembles, and let the tasting notes guide you.
What is anaerobic honey process coffee?
It combines two ideas: an anaerobic fermentation step in a sealed tank, then drying with mucilage on. The anaerobic variations guide explains the fermentation side.
Related
- Ethiopian coffee regions
- Costa Rica honey process coffee
- Anaerobic coffee variations
- Brazil natural coffee
- Coffee grind size guide
Sources
- Wikipedia, Coffee processing: semi-dry (pulped natural) section, history, drying times (secondary).
- Coffee Review, Honey-processed coffees (2016): origins of the term, mucilage by colour, tasting results.
- Café Imports, Honey process: importer description of grades, risks and drying.
- Jayarr Coffee, Honey process colours explained: roaster article quoting the Café Imports lot sheet and Royal Coffee.
- Hu F et al. Characterization of volatile compounds and microbial diversity of Arabica coffee in honey processing method based on different mucilage retention treatments. Food Chemistry: X 2025. doi:10.1016/j.fochx.2025.102251