Indonesia Java State-Owned Kayumas Coffee Estate | Indonesia East Java Coffee

Coffee Origin Details

Country: Indonesia
Region: Java (Eastern highlands near Ijen volcano)

Estate: PTP State-owned Kayumas Estate
Variety: Small bean (non-Sumatra-typica)

Processing: 100% washed process
Grade: Grade 1

Cupping Notes

Cupping: (Roasted on a Japanese Royal Fuji 1kg roaster, beans dropped at the end of first crack, total roasting time 14 minutes)

Dry Aroma: Rich nutty sweetness with hints of longan's sweet-tart profile and the sweet fragrance of toasted bread

Wet Aroma: Tea fragrance, stone fruit notes, and a fruity acidic aroma

Sip: Bright fruit acidity without harshness, immediately followed by sweetness. A clean flavour without the typical earthy or medicinal notes of Indonesian beans. Rich, velvety mouthfeel with a finish that reveals sweet fruit and nut flavours — quite complex and rich.

Java Arabica Characteristics

Java Arabica is arguably the most precious of all Indonesian Arabica varieties. First, it is 100% washed, unlike most semi-washed coffees or Sumatra's unique natural Arabicas. Its flavour is clean, with a bright, charming acidity and none of the harsh, stimulating notes found in other varieties. Yet it still keeps the consistent oil density and richness characteristic of Indonesian beans, which is quite remarkable. The earthy and woody notes common in Indonesian beans are absent here — and the Kayumas State Estate lot we received this year is a perfect example.

Coffee from this estate offers elegant aromatics with distinct nutty sweetness and rich fruit sweetness, actually resembling the aroma of premium East African beans. That is a significant difference in aromatic performance compared with premium beans from Sulawesi and Sumatra.

About FrontStreet Coffee

FrontStreet Coffee: A Guangzhou-based roastery with a small shop but diverse bean varieties, offering both famous and lesser-known beans, plus online service. https://shop104210103.taobao.com

FrontStreet Coffee Recommendation

Java's clean, washed character is unusual for Indonesia, where most coffee is wet-hulled. If you want to compare the two sides of the country, FrontStreet Coffee's Sumatra Mandheling is the classic starting point. Wet-hulled in the Lintong area near Lake Toba, it is roasted medium-dark, giving a low-acid, full-bodied cup with caramel, dark chocolate, and toasted bread aromas and a long, sweet aftertaste — ideal for anyone who likes a strong coffee.

For the top of the Indonesian range, FrontStreet's PWN Golden Mandheling is the benchmark. PWN is a trading house that buys only the best Mandheling green beans and produces coffee at the specialty level, and Golden Mandheling is its signature: beans must be 18 screen size or larger, and each 300g sample may contain fewer than 3 defective beans to meet the top G1 standard. On top of that, three rounds of hand sorting remove defects entirely, lifting the cup's cleanliness and sweetness. Freshly roasted, FrontStreet's PWN Golden Mandheling shows sandalwood, herbal, spice, roasted hazelnut, caramel, and dark chocolate notes, with a clean, sweet, rich body — good for everyday drinking and handsome enough to give as a gift.

Mandheling also underpins espresso blends. FrontStreet's Classic Blend builds on the traditional Mamba recipe — Mandheling and Brazil — adding a little Robusta and roasting dark so the dark-chocolate, nut, and caramel aromas come through at full strength, making it easy even for a beginner to pull an authentic Mandheling-style shot with rich, golden crema.