From Green to Gold — The Art of Roasting Coffee

May 29, 2026

Coffee Education · Part 1 of 3

Every cup of coffee you have ever loved began as a humble green bean — raw, grassy, and barely recognisable as the drink we treasure. What transforms it into something aromatic, complex, and deeply satisfying? Heat. Precision. Time. At The Caffeine Experience, we practise this craft right here in Singapore — on our Typhoon air roaster at the URA Centre café on Maxwell Road. This three-part series takes you behind the beans.

What Does Roasting Actually Do?

Green coffee beans are seeds — dense, grassy, their flavour compounds locked away. Roasting is the key that unlocks everything. When heat is applied, hundreds of chemical reactions are triggered: moisture evaporates, sugars caramelise, amino acids react with sugars to create entirely new aromatic compounds through the Maillard reaction. The bean swells, gas builds inside, and eventually the cell walls rupture in what roasters call "first crack" — an audible pop — and coffee as we know it is born.

"The roaster's job is not to impose flavour on a bean — it is to reveal the flavour already inside it. Under-roast and you leave potential locked away. Over-roast and you destroy what was there."

Meet the Typhoon — Our Air Roaster

Our Typhoon is a fluid bed air roaster — using a column of precisely controlled hot air to suspend and heat the beans simultaneously. There is no drum, no metal surface contact. Only heat carried by moving air.

Feature	Air Roaster — Typhoon ✓	Drum Roaster
Heat Method	Convection — hot airflow	Conduction + Convection
Roast Time	6–10 min (faster)	10–20 min (slower)
Scorching Risk	Very low — no drum contact	Higher if unmanaged
Flavour Profile	Clean, bright, origin-transparent	Richer body, fuller mouthfeel
Best For	Light roasts, single origin, specialty	Blends, medium–dark, espresso

The Four Degrees of Roast

How far you take the roast determines everything about the cup — acidity, body, sweetness, and which flavours come forward.

Roast Level	Exit Temp	Acidity	Flavour	TCE
☀ Light	196–202°C	High, bright	Fruit, florals, citrus, jasmine, peach	All TCE coffees & blends ✓
🌥 Medium	205–215°C	Medium	Caramel, hazelnut, milk chocolate	—
🌑 Med-Dark	215–225°C	Low	Bittersweet chocolate, toasted almond	—
🌑 Dark	225°C+	Very low	Char, dark chocolate, smoky	Traditional kopi heritage

Every TCE coffee — single origins and house blends alike — exits the Typhoon at no more than 202°C in 6–8 minutes, firmly in the light roast range.

Why We Roast Light

When we exit our Typhoon at 200°C in 6–8 minutes, we are making a deliberate statement: we trust the bean. The peach and jasmine in our Halo Berity Yirgacheffe G1, the pomegranate brightness in our Colombia Gesha Estate — these are not added flavours. They are what those beans have always carried within them. Our job is simply not to destroy them.

This runs deeper than flavour. At The Caffeine Experience, we believe in the inherent goodness present in every person we serve. Just as we roast light to reveal what is already inside a bean, we walk with our beneficiaries to reveal what has always been within them.

"So whether you eat or drink, or whatever you do, do it all for the glory of God."

1 Corinthians 10:31 — The heartbeat of everything we do at TCE

Taste the Difference — Our Coffees

Every coffee below has been hand-roasted on our Typhoon — light and precise, to honour the origin. All 100% Arabica specialty grade.

Coffee	Origin	Process	Tasting Notes	Price
Halo Berity Yirgacheffe G1	Ethiopia · Washed	Washed	Peach · Jasmine · Oolong	SGD 14/100g
Ethiopian Sidamo	Ethiopia · Sidamo	Washed	Floral · Citrus · Berry	SGD 14/100g
Colombia Gesha Estate	Colombia · Manantiales	Washed	Pomegranate · Ribena	SGD 16/100g
Brazil Cerrado	Brazil · Cerrado	Natural	Dark Choc · Almond · Caramel	SGD 12/100g
Cornerstone Blend	Brazil Cerrado + PNG Mt Otto	Natural + Washed	Chocolate · Banana	SGD 13/100g

Coffee Education Series — Roasting

Part 1 — Now
From Green to Gold
Roasting basics, Typhoon, heat transfer & roast levels.

Part 2 — 5 Jun
The World in Your Cup
Origins, terroir & processing methods.

Part 3 — 12 Jun
Dialling In
DTR, Rate of Rise, profiles & defects.

References
Rao, S. (2014) The Coffee Roaster's Companion. Scott Rao Publications. | Schenker, S. et al. (2002) 'Impact of roasting conditions on the formation of aroma compounds in coffee beans', Journal of Food Science, 67(1), pp. 60–66. | Specialty Coffee Association (SCA) (2024) Roasting Foundations. sca.coffee. | ASEAN Coffee Institute (ACI) (2025) Barista Certification Level 2 — Roasting Module. aseancoffeeinstitute.org.

Soli Deo Gloria — To God alone be the glory. | The Caffeine Experience | theofficialtce.com