Seoul International Cafe Show - Asia's No.1 Coffee Event

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MKR is a hardware startup developing 'ROASTREAM', the world's first continuous single-bean conveyor roaster.

Unlike traditional batch-style drum roasters that require a minimum mass to function, ROASTREAM aligns green beans in a single file on a stainless steel mesh conveyor belt, roasting them sequentially. This innovative mechanism completely eliminates the minimum batch size limitation, enabling true on-demand roasting?even if it is just a single 15g dose for one cup of coffee.

This process fundamentally resolves the inventory and waste issues associated with high-end specialty and nano-lot green beans. Furthermore, ROASTREAM features a built-in multi-stage filtration system, allowing it to be installed directly on a cafe bar counter without the need for expensive and complex ductwork. Acting as a front-of-house showpiece, customers can watch their chosen green beans being continuously roasted through a transparent heat tunnel, delivering an unprecedented visual experience and the

Coffee

MKR

Roastream

ROASTREAM is the world's first continuous single-bean conveyor roaster. It breaks the minimum batch limits of traditional drum roasters, enabling true on-demand roasting for just a single cup (15-20g). This zero-waste system eliminates wasted inventory of expensive nano-lot green beans. Featuring a built-in multi-stage smoke filter, it requires no expensive ductwork and fits perfectly on a cafe bar counter. The transparent heat tunnel offers customers an unprecedented visual roasting experience