Indonesia peaberry coffee forms when a single seed develops inside the coffee cherry instead of the usual two, producing a rounder, denser bean that makes up roughly 5% of any harvest. Because sorting peaberries from flat beans requires additional hand-grading at the wet mill, these lots command a wholesale premium over standard Indonesian Arabica. This guide covers what peaberry is, which Indonesian origins produce it, how it tastes, how it’s processed, current wholesale prices (FOB Belawan), and how to order directly from Indonesia Specialty Coffee.
Last updated: June 2026
What Is Peaberry Coffee (Kopi Lanang)?
Peaberry coffee, known in Indonesia as kopi lanang (single-bean coffee), forms when only one seed develops inside a coffee cherry. In a standard cherry, two seeds grow flat-side-together into the familiar half-moon shape. In a peaberry cherry, that single seed claims the full interior space and grows round.
Because flat beans and peaberries grow on the same plant, they are sorted after harvest rather than grown separately. Specialty-grade sorting is done by hand. That additional labor is why peaberry carries a 10–25% wholesale premium above standard-grade Arabica from the same origin.
One point roasters often overlook: peaberry is not a varietal or a processing method. It is a shape mutation. Cup quality still depends on farm altitude, cherry processing, hulling method, and grading standard. A poorly sorted peaberry will cup below a well-processed flat bean from the same farm.
Why Indonesia Produces Exceptional Peaberry Coffee
Indonesia is the world’s fourth-largest coffee producer by volume, according to the ICO. Volcanic soil, high-altitude growing zones, and equatorial humidity create conditions that concentrate sugars in coffee cherries, which is why Indonesian peaberry lots cup consistently above commodity benchmarks.
Indonesia Specialty Coffee sources peaberry from two primary origins:
- Aceh Gayo (Aceh Tengah, Bener Meriah): altitude 1,400–1,800+ metres above sea level, grown on volcanic andisol soils. Our ISC Sumatra Super Peaberry is sorted from Grade 1 Arabica Gayo lots at our Aceh Tengah processing station and represents the strongest expression of this origin in peaberry form.
- Sumatra Mandheling (North Tapanuli, Lake Toba region): comparably rich body driven by volcanic terroir and wet-hull processing, sourced from partner farms at lower altitude.
Toraja and Bali Kintamani also yield peaberry lots seasonally. For specialty-grade export at consistent scale, Gayo remains our primary peaberry source.
Flavor Profile of Indonesia Peaberry Coffee
ISC’s Grade 1 Sumatra Super Peaberry lots cup at 82–88 SCA points, assessed against the SCA cupping protocol. The core flavor characteristics:
- Dark chocolate and cocoa as the dominant base note
- Cedar and earthiness from volcanic andisol soil
- Brown sugar sweetness with a syrupy, heavy body and low, rounded acidity
- A quiet herbal top note in higher-altitude lots above 1,700 metres
The round bean shape distributes heat more evenly in the roasting drum. Unlike a flat bean’s asymmetric edges, a peaberry presents a uniform surface. In practice, this produces more consistent Maillard development and a cleaner, more concentrated expression of the origin’s core profile. By contrast, low-grade peaberry lots sorted from Grade 2 commercial coffee typically cup at 78–80 points and show flat or musty notes caused by inconsistent sorting at the mill. For a deeper look at this origin’s character, see our Sumatra Peaberry flavor guide.
Processing Indonesia Peaberry Coffee: Two-Step Framework
Indonesian peaberry processing follows a two-step system. Both steps drive the flavor in the cup.
Step 1: Cherry Processing
At ISC’s Gayo partner farms, peaberry lots are available in semi-washed and full-washed cherry methods. Semi-washed involves pulping and partial washing, leaving residual mucilage during drying to produce the chocolate-heavy, syrupy profile Gayo is known for. Full-washed delivers a cleaner cup with more defined fruit brightness. The cherry processing method is the primary flavor variable between lots.
Step 2: Wet-Hulled (Giling Basah)
After cherry processing, ISC’s Gayo and Mandheling peaberry lots are wet-hulled (Giling Basah): parchment is removed while beans are still at 35–40% moisture, then dried to 12–13% final export moisture. This is the step that defines Indonesian peaberry’s signature low acidity, syrupy body, and earthy depth. Roasters buying wet-hulled peaberry for the first time should plan for a slower first crack than washed or natural coffees. The higher residual green moisture requires deliberate heat management through the drying phase.
Looking to source peaberry now? View ISC’s current pricelist or contact our team.
Grading and Screen Size Standards
ISC grades all export peaberry lots to SNI 01-2907-2008, Indonesia’s national green coffee standard, at Grade 1 Specialty:
| Specification | ISC Grade 1 Peaberry |
|---|---|
| Screen size | 15 mm minimum |
| Defect value | ≤11 |
| SCA cupping score | 82–88 points |
| Moisture content | ≤12.5% |
A lot is disqualified from specialty grade when defect value exceeds 11, moisture content exceeds 12.5%, or screen undersize below 15 mm accounts for more than 5% of the lot weight. ISC does not ship under-graded lots. Any peaberry lot that fails Grade 1 classification is re-sorted or redirected to domestic commercial channels.
Indonesia Peaberry Coffee Price (Wholesale 2026)
Indonesia peaberry coffee carries a wholesale premium above standard Arabica from the same origin. The premium reflects additional hand-sorting labor at the wet mill, not a difference in farm altitude or cherry quality.
| Order Quantity | Product | FOB Belawan Price |
|---|---|---|
| 1 kg (sample) | Sumatra Super Peaberry, green beans | $33.06–$38.06/kg |
| 60 kg (microlot) | Sumatra Super Peaberry, green beans | Quoted on request |
| 350 kg (wholesale) | Sumatra Super Peaberry, green beans | Quoted on request |
| 9 MT+ (container) | Sumatra Super Peaberry, green beans | Custom per-MT quote |
For context, standard Grade 1 Gayo Arabica flat beans (semi-washed, wet-hulled) carry a wholesale price of $9.00–$12.00/kg FOB Belawan. CIF pricing for Rotterdam and Los Angeles ports is available on request. See our peaberry coffee price guide for a broader market comparison.
Frequently Asked Questions
What is peaberry coffee and why is it rare?
Peaberry coffee forms when a single seed develops inside a coffee cherry instead of the usual two. Because flat beans and peaberries grow on the same plant, peaberries must be hand-sorted after harvest. This adds cost and limits supply. Only about 5% of any coffee harvest produces true peaberry beans, which is why they carry a price premium over standard-grade coffee from the same origin.
What does Indonesia peaberry coffee taste like?
Indonesia peaberry coffee from Sumatra Gayo delivers dark chocolate, cedar, and earthy depth with a syrupy body and low acidity. The round bean shape distributes roasting heat more evenly, producing a concentrated flavor profile. ISC’s Grade 1 Sumatra Super Peaberry cups at 82–88 SCA points, well above the 80-point specialty grade minimum.
What is the difference between peaberry and regular coffee beans?
Unlike regular coffee beans, which grow as two flat-sided seeds per cherry, a peaberry is one round seed filling the entire cherry interior. The round shape roasts more evenly in the drum. However, origin and processing method remain the primary flavor drivers. A well-processed flat bean will outperform a poorly sorted peaberry from the same farm.
How much does Indonesia peaberry coffee cost wholesale?
ISC’s Sumatra Super Peaberry green beans carry a 1 kg sample price of $33.06–$38.06/kg FOB Belawan, with microlot, standard wholesale (350 kg+), and container load pricing quoted on request. The peaberry premium over standard Gayo Arabica flat beans reflects the additional hand-sorting labor at ISC’s Aceh Tengah wet mill.
Where can I buy Indonesian peaberry green coffee beans in bulk?
Indonesia Specialty Coffee exports Sumatra Super Peaberry green beans direct from Grade 1 partner farms in Gayo Highlands, Aceh, FOB Belawan. Minimum order is 1 kg for cupping evaluation, with standard wholesale from 350 kg. Contact ISC at info@specialtycoffee.id or via the contact page for current bulk pricing and shipping options.
Order Indonesia Peaberry Coffee from Indonesia Specialty Coffee
Indonesia Specialty Coffee exports Sumatra Super Peaberry green coffee beans directly from Grade 1 partner farms in Aceh Tengah and Bener Meriah, Gayo Highlands. Our peaberry lots are hand-sorted from specialty Arabica, wet-hulled (Giling Basah), and graded to SNI 01-2907-2008 Grade 1, cupping at 82–88 SCA points.
ISC supplies roasters, importers, and distributors worldwide across four MOQ tiers: 1 kg for cupping evaluation, 60 kg microlot, 350 kg standard wholesale, and 9 MT+ container loads at a custom per-MT rate. Free worldwide shipping on bulk orders. Halal certified on all lots; Organic available on request.
View current pricing on the ISC pricelist or contact our team for a custom wholesale quote. Sample orders are welcome for new buyers.
