Coffee: Brazil Topazio, natural
Roaster: Gene Café CBR-301
Batch: 250 g
Set temperature: 250 °C

In: 250 g → Out: 205.4 g (17.8% WL)
Total time: 13:23

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Why this roast exists

Roast 8 was not intended to be a daily-drinker or an optimisation exercise.

It emerged as a natural outcome of exploring development range on Brazilian naturals and became important because it defined the upper edge of what is enjoyable and repeatable on this setup.

This roast now serves as a contrast and guardrail, not a target.

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Roast observations

• Visually darker than earlier Brazilian naturals, but uniform and stable
• No surface oil at end of roast; oil appeared later after rest
• First crack was very quiet / ambiguous, consistent with Brazilian naturals under this system
• Roast progressed cleanly without obvious defects or scorching

At the time, this roast felt “too far” — but not broken.

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Tasting outcomes (initial)

Across early tastings:

• OxO Rapid Brew: very strong, heavy, dark-leaning
• Espresso: intense, low acidity, fatiguing for repeat cups
• Cappuccino: more balanced, rounded, and drinkable

The key conclusion then was not that the roast failed, but that it demanded context.

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Later brewing update (important)

When revisited using a Ceado Hoop:

• Dose: 18 g
• Grind: Kingrinder K6 at 85
• Water: 320 ml
• With milk: balanced, smooth, and genuinely enjoyable

This clarified that Roast 8 is format-sensitive.

Lower-pressure, longer-contact immersion brewing, especially with milk, allowed the deeper development to present as structure and chocolate-leaning body rather than harshness.

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What this roast taught me

Roast 8 confirmed several things that now underpin the wider project:

• Higher development does not automatically mean “bad”
• Brazilian naturals can appear darker and stronger without entering second crack
• Crack audibility is not a reliable decision signal on naturals
• Brew method matters as much as roast level

Most importantly:

Some roasts don’t fail — they just choose their brew method.

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How this roast is used going forward

• Not a Lazy Mode candidate
• Not a baseline
• Yes as an upper-bound / “too far” reference
• Yes as a reminder of why guardrails exist

Roast 8 defines the point beyond which coffee becomes less repeatable and more situational, drinkable, but not something I’d want cup after cup.

That makes it useful.