The Coffee Roasting Process

This page is dedicated to exploring how we make our delicious wholesale roasted coffee. Here, we share more information on our eco-friendly commercial coffee roaster, give you insight into how to roast green coffee beans, and talk you through our coffee roasting process as a whole.

Our Commercial Coffee Roaster

The star of the coffee roasting process is our commercial coffee roaster, the Loring S35 Kestrel™. It’s an iconic machine for Loring and essential to our work, roasting green coffee beans to perfection. This high-quality, American-made machine is designed and built in Northern California, utilizing components manufactured here in the United States.

We also love the Loring S35 Kestrel™ because it enables us to roast batches of many different sizes – we offer custom roasts as small as 15 lbs, and large batch roasts of 77 lbs, so we can stay flexible for our customers. This high-quality commercial coffee roaster also allows us precise control over every roast, so you get the distinct flavors you expect every time.

Eco Coffee Roasting

Minimizing the greenhouse gases produced during the commercial coffee roasting process is a priority at Coffee Masters, so choosing an eco-friendly coffee roaster was an important decision for us. The Loring S35 Kestrel™ features a single burner, which means that the heat used to roast the coffee is repurposed to incinerate the smoke and pollutants. This is a much more eco-friendly method than using an afterburner; it not only helps protect the quality of local air, it also uses 80% less energy than a standard coffee roaster. If selling eco-friendly coffee is important to your store, we welcome you to get in touch to request more information about our eco coffee roasting process.

How to Roast Green Coffee Beans: Our Coffee Roasting Method

The green coffee beans start their journey by being dropped into our scaled, rolling green bean cart. At the bottom of the cart, the beans are then passed through a rare-earth magnet that identifies metallic objects, to protect your coffee and our commercial coffee roaster. While the beans are being vacuum-lifted into the hopper, a built-in cyclone filter collects the dust and debris from the burlap bags. The beans are then dropped from the hopper into the roasting chamber.

This convection roaster protects the natural flavors by allowing very little oxygen into the roast chamber and letting the clean, natural taste of the beans shine through. Three rotating paddles and agitators help move the beans around in a fixed drum while hot air is evenly dispersed. Each roast takes about 10-16 minutes to complete. The Roastmaster can view the beans through the glass and even take out a sample to make sure the beans are to their liking.

“Chaff” is the final layer of the coffee cherry pulp which remains on the bean until roasted. It is a thin flaky layer of parchment which covers the bean. The coffee beans swell in size as the water within the beans turns to steam, and the chaff comes off and is carried out of the roaster into the chaff can.

Once the coffee is finished roasting, the door automatically opens and the fresh roasted coffee is dispensed into the cooling tray. A powerful downdraft and paddles evenly mix, cool, and empty the roasted coffee beans from the machine in under four minutes.

The coffee roasting process is complete! From here, we carefully bag your wholesale roasted coffee beans in the standard or private label packaging of your choice and send it to you to make your next customer’s day.

Order Your Custom Coffee Blend

Ready to order your own custom coffee blend? Contact us to discuss your needs, browse the site to find new favorite coffee products, or schedule a tour to see our coffee roasting process for yourself.

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