Roast level menentukan ~50% flavor profile cangkir akhir. Origin 30%, brewing teknik 20%. Memilih roast yang tepat = experience optimal.

Spektrum Roast

1. Light Roast (Cinnamon, City — 205-215°C)

Visual: Biji tan-kecoklatan terang, kering, no oil sheen. Flavor: Acidity TINGGI bright (lemon, jeruk, berry), fruity + floral explicit, origin character transparan, body ringan-medium. Cocok untuk: V60, Chemex, Kalita — pour-over clarity-first. Origin match: Ethiopia natural, Kintamani washed, Toraja light, Gayo washed specialty. Avoid untuk: Milk drinks (acidity clash), French press body-heavy expected.

2. Medium-Light (City+ — 215-220°C)

Visual: Brown medium, slight sheen at edge. Flavor: Balance acidity + sweetness, sugar caramelization mulai, origin masih dominant. Cocok untuk: V60, Kalita, AeroPress. All-purpose third-wave. Origin match: Versatile — paling banyak specialty scene.

3. Medium (Full City — 220-225°C)

Visual: Brown deep, trace oil. Flavor: Sugar dominant, nut-caramel-chocolate prominent, acidity soft, body medium-full. Cocok untuk: AeroPress, French press, moka pot. Milk drinks (latte, flat white). Origin match: Toraja, Flores, Java Preanger — balanced origins.

4. Medium-Dark (Full City+ — 225-230°C)

Visual: Very brown + oil visible. Flavor: Chocolate-smoky dominant, body rich, acidity subtle, sweetness caramelized. Cocok untuk: Espresso single origin, moka pot, French press. Cappuccino-base. Origin match: Gayo + Mandailing wet-hulled — heritage deep.

5. Dark (Vienna, French — 230°C+)

Visual: Dark brown-black + very oily surface. Flavor: Smoky-burnt-bitter dominant, origin muted, caramelization + carbonization maximal. Cocok untuk: Espresso commercial blend, tubruk tradisional, kopi joss. Origin match: Robusta blend, generic arabica. Specialty rarely dark roasted (masks origin). Note: Banyak kopi Indonesia warung = dark roast + robusta = pahit kuat classic.

First Crack vs Second Crack

First crack ~205°C: biji pop pertama — start territorial medium roast
Second crack ~225°C: lebih dark — oil mulai release
Past 2nd: Full dark, cell structure rusak (oil dominant)

Fresh-to-Drink Timing

Light roast: rest 7-14 hari (CO2 tinggi, butuh degas + flavor open)
Medium: rest 5-10 hari
Medium-dark: rest 3-7 hari
Dark: rest 2-5 hari (cell structure terbuka, cepat degas)

Brew terlalu cepat dari roast date = "green" / "baked" flavor (belum dikembang). Brew terlalu lama (>1 bulan) = stale (bagaimanapun roast level).

Membaca Label Roaster

Indonesian specialty roaster sering kasih "Roast Profile" notation:

SO Light: Single Origin Light roast
Filter Roast: Optimized untuk pour-over (= medium-light biasanya)
Espresso Roast: Optimized untuk espresso (= medium atau medium-dark)
Omni Roast: Bisa dipakai filter OR espresso (medium center)

Cek roast date label — specialty selalu print.

Preferensi Personal

Tanyakan:

Suka asam bright fruity? → Light-Medium Light
Suka chocolate-nutty smooth? → Medium
Suka bold-heavy espresso? → Medium-Dark
Suka signature Indonesia bold? → Medium-Dark + giling basah

Tidak ada "better roast" absolut. Fit dengan preference + metode brewing.

Visual Identification Cheat

Kalau beli dari roaster tanpa label:

Biji pucat + kering = light
Biji brown dengan dot oil = medium-dark
Biji gelap mengkilap = dark

Tanyakan roast date + profile ke barista. Good specialty always transparan.

Mulai dari medium roast untuk explorasi pertama — paling forgiving across methods. Dari sana adjust ke light atau dark sesuai preference.