Roasters – CoffeeCoffee_Roaster__CoffeePER

Industry: Coffee and Tea Manufacturing (NAICS 3119)

NAICS Process:

311920 Coffee and Tea


Process Brief: Green coffee beans are roasted in direct-fired drums

Energy Source: Natural Gas

Energy Intensity: 700 – 1,000 BTUs per Pound of Roasted Beans EXCLUDING afterburners/incinerators for smoke and chaff control


Roasters typically operate at temperatures between 370° and 540°C (698° and 1004°F), and the beans are roasted for a period of time ranging from a few minutes to about 30 minutes. Roasters are typically horizontal rotating drums that tumble the green coffee beans in a current of hot combustion gases; the roasters operate in either batch or continuous modes and can be indirect- or direct-fired. Indirect-fired roasters are roasters in which the burner flame does not contact the coffee beans,although the combustion gases from the burner do contact the beans. Direct-fired roasters contact the beans with the burner flame and the combustion gases. At the end of the roasting cycle, water sprays are used to “quench” the beans.


The coffee roaster by CoffeePER shown in the above photo is rated for up to 1,200 lbs per hour with a gas input of 950,000 BTUs.
Coffee_Roaster_CoffeeTECThe CoffeeTec roaster (red color to right) includes an integrated afterburner; the spec sheet says the gas input is 5.1 to 8.3 Million BTUs/ hour, and the capacity is over 1,000 lbs.


Energy Efficiency Improvement

Coffee Roasting





CoffeePER, Inc

Reno, Nevada

Telephone: 775-423-8857


Web site:

1111 Arguello Street

Redwood City,  CA 94063

Telephone: 650-556-1333


Web site:

Coffee_Roaster_LoringLoring Smart Roast, Inc.

3200 Dutton Avenue, Suite 413

Santa Rosa, CA 95407

Telephone: 707-526-7215


Web site:


Our goal is to offer our customers equipment that will roast consistently and express the best qualities of a coffee. Beyond, and second only to that, we concentrate on producing machinery that drastically reduces air pollution and preserves natural gas supplies in the most efficient and cost effective way possible.


The Gas Meter Tells its Story


The Kestrel S35 dramatically reduces your operating costs, and thus increases your profit margins. From six months of actual data a reduction of 80% in natural gas consumption was calculated. The Kestrel S35 operated side by side with a conventional drum roaster with afterburner. Over a six-month period the reduction in CO2 production was 280,000 pounds. Wow!! Your monthly savings in utility costs will more than pay for any difference in initial cost between the Kestrel and any other system.







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