How does the honey processed coffee bean method work?

The honey processing method originated in Costa Rica and improves on Brazil's semi-dry process. After the skin and pulp are removed, varying proportions of mucilage are left on the beans to sun-dry. Depending on how much mucilage remains and how long the beans dry, the method is graded into yellow honey, red honey, and black honey, with flavors running from balanced and sweet to rich and full-bodied.

The flow is straightforward. Coffee picking starts with cherries poured into a water tank, where floaters are removed and the rest go through a pulper. Beans then dry with a layer of yellow mucilage still attached until moisture drops to 10.5 to 12 percent, after which they are hulled and polished before export. This process uses far less water than washed processing.

The honey processing method originated in Costa Rica and is an improvement and elevation of Brazil's semi-dry process. After removing the skin and pulp, it retains varying proportions of mucilage for sun-drying. Depending on how much mucilage is retained and the length of sun exposure, it is further divided into three grades—yellow honey, red honey, and black honey—with flavors ranging from balanced and sweet to rich and full-bodied. This article systematically sorts out the operational flow, flavor characteristics, and grading logic of semi-dry and honey processing, and brings brewing suggestions for two representative beans from Front Street Coffee—Brazil Red Bourbon and Costa Rica Geisha—to help coffee lovers gain a deeper understanding of the intricacies of this processing method.

Semi-dry processing

This processing method falls between natural and washed, and can be further divided into two categories: pulped natural and honey processing. The two are quite similar in operation: both first remove the outer skin of the coffee cherry like the washed method, but skip the "tank fermentation and clean-water rinsing" steps of washing, instead placing the beans directly in the sun to dry. Although the steps appear nearly identical, a single key difference gives rise to completely different flavor directions, so it is necessary to discuss them separately.

Semi-dry processing flow 1. First pour the coffee cherries into a large water tank, remove the floating cherries, then send the sunken cherries into a pulping machine to remove the pulp. This not only more effectively eliminates unripe cherries, but more importantly leaves the coffee beans with only a layer of mucilage rather than pulp during sun-drying, making subsequent fermentation easier to control.

2. After removing the skin and pulp, a layer of yellow mucilage is visible on the surface of the cherries, and they are then sun-dried with this mucilage layer still on (after the pulp is removed from coffee beans, that sticky gelatinous substance is the mucilage).

3. Dry until the beans' moisture content drops to 10.5%–12%, then hull them.

4. Finally, before bagging for export, carry out a polishing step.

This processing method uses far less water than the washed method, and some steps are similar to washed (removing skin and pulp) while others are closer to natural (no tank fermentation), so it is also called the semi-washed method.

Characteristics of semi-dry processing 1. Suitable for commercial large-scale operations (Brazil mostly uses this method); relatively simple to operate, saving water and being environmentally friendly.

2. When removing skin and pulp, fully ripe pulp falls off easily, while the skin of unripe green cherries is harder to process; this allows a second screening to filter out unripe cherries and unify the ripeness of the coffee cherries. Compared with natural processing, the sorted cherries are cleaner and more uniformly ripe, resulting in coffee with a more balanced taste.

3. Shortens drying time, saves time cost, and increases added value.

4. Relatively consistent ripeness, which is more conducive to storage and stabilizing green bean quality.

This method originated in Brazil, and Front Street Coffee's Brazil everyday-drinking bean uses exactly this processing method.

Front Street Coffee · Brazil Red Bourbon

Region: Brazil, South Minas region Altitude: 1000m Variety: Red Bourbon Processing method: Semi-dry Flavor: Nuts, chocolate, cream, peanut, caramel

When roasting this semi-dry Brazil bean, to highlight its full-bodied flavor, Front Street recommends a medium-dark roast. For brewing medium-dark roasted coffee beans, Front Street Coffee recommends controlling the water temperature at 88–89°C; too high a temperature brings out unpleasant flavors such as woodiness, while too low a temperature fails to fully extract the sweetness.

Front Street Coffee brewing suggestion For darker-roasted coffee beans, to highlight the full-bodied feel, Front Street Coffee uses a Kono dripper for brewing. The Kono dripper's feature is its immersion function, which can extract more coffee substances through immersion and enhance the full-bodied mouthfeel. Its ribs are few and located at the lower end, allowing the filter paper to cling tightly to the wall to restrict airflow, thereby slowing the water flow and increasing the contact time between water and coffee grounds.

Brewing parameters: Water temperature: 88°C Dose: 15g Coffee-to-water ratio: 1:15 Grind size: Medium-coarse grind (70–75% passing through a No. 20 standard sieve)

Technique: For the first pour, add 30g of water and bloom for 30 seconds; then pour 95g (scale reads about 125g), finishing in about 1 minute; when the water level drops to 2/3 of the coffee bed, pour the remaining 100g (scale reads about 225g), finishing in about 1 minute 40 seconds. Drip completes in 2 to 2 minutes 10 seconds; remove the dripper and extraction is finished.

Honey processing Honey processing Originated in Costa Rica, and is very common in origins such as El Salvador and Costa Rica. In essence, it was improved by referencing Brazil's semi-dry processing method.

Honey processing is a method that local coffee farmers tried in order to improve coffee bean quality, and it later gradually spread to other countries. So why did Costa Rican farmers try this processing method? Because farmers' income mainly depends on coffee bean trading, and better-quality beans bring higher profits, so it is not surprising that they kept trying new processing methods.

For a coffee origin, there are three ways to improve coffee bean quality: first, improve the processing method; second, change the planted variety; third, improve the farm's soil quality, that is, relocate. But just as when we brew coffee, before adjusting dose and grind size, we first adjust extraction volume, pressure, and temperature, we prioritize the variables that save time and money. For farmers, changing varieties and relocating farms are time-consuming and labor-intensive, so improving the processing method becomes the first choice.

Honey processing process 1. After picking, the coffee cherries are first collected and screened, and qualified cherries are selected.

2. The screened cherries are sent to a depulper; this step removes the skin and pulp while retaining the mucilage layer. Mucilage is the part of the coffee fruit with the highest sugar content and is also the key to fermentation; it can be said to determine 80% of the nutrient supply during processing. Yellow honey retains 60% mucilage, red honey retains 75%, and black honey removes almost no mucilage. The more mucilage retained, the richer the coffee's final flavor and the higher the sweetness.

3. Unlike washed processing, honey processing retains part of the mucilage for drying. Drying reduces the coffee beans' moisture content to about 11% and takes about 18 to 25 days, depending on the climate and the processor's experience.

4. After drying is complete, the beans are bagged and transported to a warehouse for storage, and only hulled to remove the parchment layer before export shipping.

Flavor performance of honey processing Honey-processed coffee beans have better flavor, with balanced acidity and sweetness, and because they undergo sun-drying, the coffee's own aroma is amplified and the body is thick.

Color grading of honey processing

Today, growers grade honey-processed green beans by coffee color, divided into 3 grades: yellow, red, and black. The change in color depth comes from the length of sun exposure during drying.

Yellow honey green beans have the longest sun exposure. Long exposure means higher heat, and this coffee can be dried within 1 week. Usually, drying time depends on the local climate, temperature, and humidity. Red honey green beans take 2–3 weeks to dry, often because of the weather or being placed in the shade. If the weather is sunny, growers will shade part of the sunlight to reduce exposure. Black honey green beans are dried in the shade for the longest time and receive the shortest sun exposure, requiring at least 2 weeks to dry. Black honey processing is the most complex and has the highest labor cost, so the price is the most expensive.

What is the difference between yellow honey, red honey, and black honey?

The three are distinguished by sun-drying time and mucilage amount; the amount of mucilage and parchment determines the sun-drying duration. Yellow honey has 25% parchment, red honey 50%, and black honey 100%. Therefore, from yellow honey to black honey, the required drying time is longer and the management requirements are more stringent.

If one must rank them, the best-tasting is black honey, because it has the most parchment and a richer, more intense mouthfeel. So why still produce yellow honey and red honey? Coffee farmers also need to consider commercial factors: producing black honey requires twice the drying beds of other types and more time, manpower, and effort; moreover, not all buyers can afford black honey, so producing yellow honey and red honey can be said to be a choice made for the coffee production environment.

Front Street Coffee: Hacienda San Isidro Labrador · Honey-processed Geisha Country: Costa Rica Region: Tarrazú, Candelaria Farm: Hacienda San Isidro Labrador Altitude: 1900–2100 m Variety: Geisha Processing method: Honey

Flavor: Cherry, orange, yellow peach, floral, oolong tea

Front Street Coffee brewing suggestion Brewing parameters: Water temperature 90°C Dose 15g Coffee-to-water ratio 1:15 Grind size: Fine-coarse grind (80% passing through a No. 20 standard sieve)

Technique: For the first pour, add 30g of water and bloom for 30 seconds; then pour 95g (scale reads about 125g), finishing in about 1 minute; when the water level drops to 2/3 of the coffee bed, pour the remaining 100g (scale reads about 225g), finishing in about 1 minute 40 seconds. Drip completes in about 1 minute 50 seconds; remove the dripper and extraction is finished.

The above content is compiled by CoffeeHunters, a coffee news website.