Air Roasted
Coffee Beans
Air roasting produces cleaner, sweeter coffee by suspending beans on heated air — no contact burning, no bitter aftertaste. Just pure coffee flavour.
What is Air Roasting?
Most coffee you'll find on supermarket shelves and even in many speciality roasters is drum roasted. In a traditional drum roaster, green coffee beans are tumbled inside a hot metal cylinder. While this method has been used for over a century, it has a fundamental limitation: the beans are in direct contact with a hot metal surface. This contact causes uneven roasting — the outside of the bean can scorch or char while the centre remains underdeveloped.
Air roasting — also called convection roasting — takes a completely different approach. Instead of tumbling beans against hot metal, the roaster suspends the beans on a powerful stream of precisely heated air. The beans float and circulate freely, with every surface exposed to the same consistent temperature. This means each bean is roasted evenly from the inside out, with no contact burning whatsoever.
The result is a cleaner, sweeter cup of coffee. Without the smoky, bitter compounds created by surface charring, you taste the true character of the bean — its origin, its natural sweetness, and the delicate flavour notes that make each coffee unique. Air roasted coffee also stays fresher for longer, because the natural oils remain locked inside the bean rather than being forced to the surface by aggressive heat.
Our roasting system is fully computerised, giving us precision control to within 0.1°C at every stage. This means we can reproduce the exact same roast profile batch after batch, so your coffee tastes consistently excellent every time you order. Learn more about our roasting process →
Air Roasting vs Drum Roasting
| Air Roasting | Drum Roasting |
|---|---|
| Beans suspended on heated air — no contact burning | Beans tumble against hot metal surface |
| Even roast from inside out | Uneven — surface can char while centre underdevelops |
| Cleaner, sweeter flavour profile | Can produce smoky, bitter notes from scorching |
| Natural oils stay inside the bean | Oils forced to surface by aggressive heat |
| Uses up to 80% less energy | High energy consumption |
| Consistent results batch after batch | More variation between batches |
| Longer freshness — beans stay fresh longer | Surface oils oxidise faster |
The Benefits of Air Roasted Coffee
From taste to sustainability, air roasting delivers a better cup and a better process.
Cleaner Taste
No surface burning means pure coffee flavour comes through in every cup — no smoky or bitter aftertaste.
Even Roast
Every bean is roasted consistently from the inside out, suspended on heated air for a uniform result.
Longer Freshness
Natural oils stay locked inside the bean rather than being forced to the surface, keeping your coffee fresher for longer.
80% Less Energy
Air roasting uses up to 80% less energy than traditional drum roasting — better for the planet with every batch.
No Surface Burning
Beans never touch a hot metal surface, so there's no scorching or charring. The result is smooth, never bitter coffee.
Consistent Flavour
Precision computerised control to 0.1°C ensures every batch tastes exactly the same — reliable quality every time.
Why Peak Coffee Chose Air Roasting
When we set out to build Peak Coffee, we had one goal: to produce the cleanest, most flavourful cup of coffee we possibly could. After extensive testing and research, the choice was clear — air roasting delivers a superior result to traditional drum methods. Every bean in our range benefits from even heat distribution, zero contact burning, and precision temperature control.
But it's not just about taste. We care deeply about sustainability, and the fact that air roasting uses up to 80% less energy than drum roasting was a major factor in our decision. It's a more efficient, cleaner process that produces less waste and fewer emissions — something we believe every roaster should be thinking about.
All of our coffee is freshly roasted in the UK using this convection method. Whether you're brewing a bright, fruity single origin or a rich, chocolatey blend, you'll taste the difference that air roasting makes. Explore our full roasting process →
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Air Roasted Coffee — Frequently Asked Questions
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