What is the best time to buy green coffee from Indonesia?

The best time to buy fresh crop Indonesian green coffee is 1–3 months after the harvest peak of your preferred origin. For Gayo Arabica, this means July–December. For Lampung Robusta, June–September. Buying within 6 months of harvest ensures optimal moisture, cup quality, and freshness. Past-crop (older than 12 months post-harvest) should be avoided for specialty applications.

Does Indonesia have two coffee harvest seasons per year?

Some Indonesian origins — especially Gayo Arabica in Aceh — have a main crop (main harvest, larger volume) and a fly crop (smaller secondary harvest, typically 4–6 months later). The main crop accounts for roughly 70–80% of annual volume. Fly crop lots are smaller in volume but sometimes offer unique cup profiles due to different flowering conditions.

Indonesia Coffee Harvest Season 2026 — When to Buy by Origin

Q: When is the Indonesia coffee harvest season?

Indonesia has multiple harvest windows depending on origin: Gayo Arabica (Aceh/Sumatra): main harvest June–October, fly crop November–February. Mandheling Arabica (North Sumatra): main harvest October–March. Toraja Arabica (Sulawesi): main harvest May–September. Flores Arabica: main harvest June–October. Lampung Robusta: main harvest May–August. Java Robusta: main harvest June–September. Fresh crop (new season) is generally 1–3 months after harvest peak.

When is the Indonesia coffee harvest season?

Indonesia has year-round coffee availability because different origins harvest at different times. Gayo and Mandheling (Sumatra Arabica) peak June–March. Toraja and Flores peak May–October. Lampung and Java Robusta peak May–September. This staggered calendar means fresh crop is always available from at least one major origin.

2026 Harvest Calendar by Origin

Origin	Main Harvest	Fly Crop	Best Buy Window
Gayo Arabica (Aceh)	June – October	November – February	July – December Fresh Now
Mandheling Arabica (N. Sumatra)	October – March	April – June	November – April
Toraja Arabica (Sulawesi)	May – September	November – February	June – November Fresh Now
Flores Arabica	June – October	December – February	July – December Fresh Now
Lampung Robusta (S. Sumatra)	May – August	October – December	June – October Fresh Now
Java Robusta	June – September	November – January	July – November Fresh Now

🌱 "Fresh Now" = current crop within 3 months of harvest peak as of June 2026. Harvest dates are approximate and vary by altitude and annual weather patterns.

Origin Harvest Details

Gayo Arabica · Aceh Tengah

Gayo Arabica

Main harvest: June – October
Fly crop: November – February

Main crop represents ~75% of annual volume. Fly crop often has unique cup profiles. Altitude 1,200–1,600m delays cherry maturation vs lowland origins.

Mandheling · North Sumatra

Mandheling Arabica

Main harvest: October – March
Fly crop: April – June

Wet-hull (Giling Basah) processing shortens drying time — fresh crop available to export within 2–3 months of harvest. Continuous availability due to two harvests.

Toraja · Sulawesi Selatan

Toraja Arabica

Main harvest: May – September
Secondary: November – February

Toraja harvest peaks in July–August. Exports typically available August–December for main crop. Limited total volume — order early for premium lots.

Flores · East Nusa Tenggara

Flores Arabica

Main harvest: June – October
Secondary: December – February

Emerging origin — volume growing year on year. Harvest aligns with Gayo, so some consolidation possible for mixed shipments.

Lampung Robusta · South Sumatra

Lampung Robusta

Main harvest: May – August
Secondary: October – December

Indonesia's largest Robusta volume. Harvest is earlier than Java Robusta. Large stock available year-round from warehousing, but fresh crop quality peaks June–October.

Java Robusta · Central/East Java

Java Robusta

Main harvest: June – September
Secondary: November – January

Slightly later harvest than Lampung. Ships from Tanjung Priok (Jakarta) — frequent container sailings. Fresh crop available July–December.

💡 Buying Tip: Fresh Crop vs Past Crop

For specialty applications (filter, pour-over, single origin), always request current crop — harvested within the last 12 months. For commercial blends and instant coffee, past crop (12–18 months post-harvest) is acceptable and often cheaper. Ask your supplier for the harvest year and month of the lot before purchasing.

Frequently Asked Questions

When is the best time to buy green coffee from Indonesia?

It depends on the origin. For Gayo Arabica fresh crop: order July–December. For Mandheling fresh crop: November–April. For Lampung Robusta fresh crop: June–October. Buying within 3–6 months of harvest peak ensures the lowest moisture loss and freshest cup profile. Contact us to confirm the harvest date of any current lot.

Does Indonesia have a single coffee harvest season?

No — Indonesia has multiple harvest windows because different islands and altitudes have different rainy seasons and flowering cycles. Sumatra Arabica (Gayo, Mandheling) harvests mainly June–March. Sulawesi (Toraja) peaks May–September. Robusta (Lampung, Java) peaks May–September. This means fresh crop is available from at least one major origin year-round.

What is the difference between main crop and fly crop?

Main crop (or main harvest) is the primary, larger harvest — typically 70–80% of annual volume. Fly crop (also called second crop or mittel crop in some regions) is a smaller secondary harvest that occurs 4–6 months after the main harvest due to a second flowering cycle. For Gayo Arabica, fly crop is November–February. Fly crop lots are smaller in volume but can have distinct cup profiles.

How do I know if a lot is current crop or past crop?

Ask your supplier for the harvest year and month of the specific lot. We document harvest date for all lots we offer. Current crop is typically anything harvested within the past 12 months. We recommend requesting current crop documentation (lot card or cupping report with harvest date) for all specialty purchases.

Current Crop Available Now

Gayo, Toraja, Flores, Lampung Robusta, and Java Robusta are all in fresh crop window as of June 2026. Contact us for available lots.

📱 Check Current Crop Availability Request Sample →

Indonesia Coffee Harvest Season 2026