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.
Putra Siregar
The Liberica coffee price per kg in 2026 ranges from roughly $6.00 to $22.00 per kg FOB for green beans,…
Liberica coffee beans are the third commercial coffee species, distinct from Arabica and Robusta, and account for less than 1.5%…
The Lintong vs. Mandheling coffee question comes up regularly among roasters sourcing Sumatran green beans, and for good reason: both…
The lintong coffee price for the 2026 crop year starts at $9.50 per kg FOB Belawan for Grade 1 Specialty…
Lintong coffee beans, grown southwest of Lake Toba in North Sumatra’s Humbang Hasundutan Regency, deliver one of Indonesia’s most recognizable…
Java ijen coffee grows on the volcanic Ijen Plateau at the eastern tip of East Java, in the Banyuwangi and…
Java coffee beans are among the oldest commercially traded coffees in the world, and among the most frequently misread by…
Bali Kintamani coffee wholesale price in 2026 runs from $10,200 – $15,500/MT for Grade 1 green beans, FOB Tanjung Perak.…
Kalosi coffee is an Arabica origin from Enrekang Regency, South Sulawesi, named after the town of Kalosi, the main coffee…
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…
Our cupping team is ready to build a profile around your brand — from single-origins for specialty cafés to consistent blends for export.
