About the Author

Putra Siregar

Putra writes for Indonesia Specialty Coffee — origins, cupping, processing, and the trade behind every cup.

Putra Siregar leads coffee curation and content at Indonesia Specialty Coffee. He writes practical guides on green-coffee handling, roasting and brewing — from diagnosing defects like mold to dialing in espresso — helping roasters and coffee lovers get the most from Indonesian beans.

Role
Head of Sourcing
Articles
191 published
Coverage
Sumatra Sourcing
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Putra Siregar Putra Siregar
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Latest articles by Putra Siregar.

Lintong Coffee Price per KG 2026: Wholesale from Indonesia Specialty Coffee
Articles

Lintong Coffee Price per KG 2026: Wholesale from Indonesia Specialty Coffee

The lintong coffee price for the 2026 crop year starts at $9.50 per kg FOB Belawan for Grade 1 Specialty…

15/05/2026Read
Lintong Coffee Beans: North Sumatra’s Lake Toba Origin Guide
Articles

Lintong Coffee Beans: North Sumatra’s Lake Toba Origin Guide

Lintong coffee beans, grown southwest of Lake Toba in North Sumatra’s Humbang Hasundutan Regency, deliver one of Indonesia’s most recognizable…

12/05/2026Read
Java Ijen Coffee: Blue Fire Crater Origin Guide
Articles

Java Ijen Coffee: Blue Fire Crater Origin Guide

Java ijen coffee grows on the volcanic Ijen Plateau at the eastern tip of East Java, in the Banyuwangi and…

06/05/2026Read
Java Coffee Beans: Origin, Grade & Wholesale Buyer’s Guide 2026
Articles

Java Coffee Beans: Origin, Grade & Wholesale Buyer’s Guide 2026

Java coffee beans are among the oldest commercially traded coffees in the world, and among the most frequently misread by…

05/05/2026Read
Bali Kintamani Coffee Price per KG 2026: Wholesale from ISC
Articles

Bali Kintamani Coffee Price per KG 2026: Wholesale from ISC

Bali Kintamani coffee wholesale price in 2026 runs from $10,200 – $15,500/MT for Grade 1 green beans, FOB Tanjung Perak.…

30/04/2026Read
Sulawesi Kalosi Coffee: What It Is, Where It Grows, and How It Differs from Toraja
Articles

Sulawesi Kalosi Coffee: What It Is, Where It Grows, and How It Differs from Toraja

Kalosi coffee is an Arabica origin from Enrekang Regency, South Sulawesi, named after the town of Kalosi, the main coffee…

28/04/2026Read
Toraja vs Gayo Coffee: Comparing Indonesia’s Two Premium Arabicas
Articles

Toraja vs Gayo Coffee: Comparing Indonesia’s Two Premium Arabicas

Toraja and Gayo are Indonesia’s two most internationally traded Grade 1 Arabica origins. Both grow above 1,400 metres above sea…

27/04/2026Read
Toraja Coffee Price per KG 2026: FOB & CIF Wholesale Rates from Sulawesi
Articles

Toraja Coffee Price per KG 2026: FOB & CIF Wholesale Rates from Sulawesi

Toraja Arabica green coffee beans from South Sulawesi carry a 2026 wholesale price of $9.15–$9.60 per kg FOB Belawan, depending…

27/04/2026Read
Arabica Toraja Coffee: Complete Origin Guide & Wholesale Price 2026
Articles

Arabica Toraja Coffee: Complete Origin Guide & Wholesale Price 2026

Toraja coffee, grown across the highlands of South Sulawesi at 1,200 to 1,700 metres above sea level, is one of…

25/04/2026Read
Putra Siregar
Profile summary

Putra Siregar

Head of Sourcing · Indonesia Specialty Coffee

Putra Siregar leads coffee curation and content at Indonesia Specialty Coffee. He writes practical guides on green-coffee handling, roasting and brewing — from diagnosing defects like mold to dialing in espresso — helping roasters and coffee lovers get the most from Indonesian…

191
Articles published
2023
Writing since
Aug 2026
Latest article
CuppingOriginsProcessingSourcingSensoryExport
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