How Loring S70 Peregrine Solves Key Coffee Roasting Problems

Coffee roasters have long struggled with two stubborn challenges: inconsistent control during the roast and the persistent issue of smoke and chaff management. These aren’t just technical headaches—they directly affect the flavor, safety, and efficiency of every batch. For specialty roasters aiming for precision and cleanliness, these problems have been barriers to perfecting their craft.

The Loring S70 Peregrine smart coffee roaster solves both with its patented Flavor-Lock Roast Process™, achieving smokeless, oxygen-free roasting in a closed-loop system. It produces repeatable, high-quality roasts with up to 80% energy savings compared to conventional machines.

What Is the Loring S70 Peregrine?

The Loring S70 Peregrine is a 70-kilogram-capacity (154 lb) commercial coffee roaster designed for precision and efficiency. It's built with a fully enclosed, computer-controlled roasting environment that eliminates the need for external smoke vents. The machine supports batch sizes as small as 15 kg (33 lb) and can roast up to 2,000 kg (4,000 lb) in an 8-hour shift—or up to 600 metric tons annually under full operation.

How Does Flavor-Lock Roast Process™ Work?

The Flavor-Lock Roast Process™ is Loring’s patented roasting method that creates a closed-loop, oxygen-free environment inside the roasting chamber. By removing oxygen from the heating gases and increasing humidity, it preserves volatile aromatics and reduces unwanted combustion byproducts. This results in better flavor development, higher bean yield, and more consistent roast profiles. The system allows roast times between 10 to 16 minutes, captures real-time roast data, and includes high-speed cooling to “lock in” flavor quickly and prevent over-roasting.

Key benefits include:

• Smokeless roasting via single-burner design
• Absolutely repeatable roasts through computer-controlled parameters
• Precise control over roast times and profiles
• Real-time roast profile capture and download
• Rapid cooling to preserve flavor integrity

What Makes the S70 Peregrine Different From Conventional Roasters?

Unlike traditional coffee roasters, the Loring S70 Peregrine doesn’t vent smoke or exhaust hot air outside. Instead, it uses a self-contained thermal system where chaff and silver skin are separated, burned cleanly, and the resulting smoke is converted into water vapor that re-enters the roasting chamber. This closed thermal loop eliminates the need for an external chimney, prevents grease and chaff buildup (which are fire hazards), and removes oxygen to enhance flavor while improving safety.

Additional differentiators include:

• 80% energy savings over traditional roasters (up to $30,000/year in gas savings in the U.S.)
• No external smoke stack or fire risk from buildup
• No emissions of smoke or dust—better for indoor and urban environments
• Climate-resistant performance: stable roasting regardless of external weather conditions

Mechanically, the roaster features a compact footprint (88 sq ft / 8.1 sq m; 136” x 93”), stainless steel construction, vacuum bean lift, a digital scale-equipped bean cart, and automated controls for dropping green beans, discharging roasted coffee, and managing the cooling tray. It also includes a bean trier and true-color inspection lamp for quality assessment.

How Easy Is It to Operate and Control?

The Loring S70 Peregrine is operated via an intuitive touchscreen interface. Roasters can program, monitor, and replicate every stage of the roast with precision. The system supports optional remote control via iPad or other internet-connected smart devices. It uses parametric PLCs for exact parameter control and offers automatic modes for green bean input, roasted bean discharge, and cooling tray operation.

Other control and tech features include:

• Touchscreen interface for full roast control
• Optional iPad or smartphone remote access (internet required)
• Parametric PLCs for ultra-precise adjustments
• Automated green bean drop, discharge, and cooling tray functions
• Bean trier and true-color inspection light

What Are the Installation and Safety Requirements?

To install the Loring S70 Peregrine, you’ll need a minimum ceiling height of 12 feet (3.7 m), 3 feet (0.9 m) of clearance to walls, and an 8-inch diameter insulated double-wall exhaust stack. The machine is designed with built-in safety mechanisms including a self-cleaning exhaust stack to prevent stack fires, clutch-operated cooling tray paddles to reduce injury risk, and computer-controlled quench systems in the cyclone and chaff collection areas.

Utilities required include electricity (custom wiring per country), natural gas or propane, compressed air, water, and internet access for data upload, software updates, and remote diagnostics.

Frequently Asked Questions

What is the batch size range of the Loring S70 Peregrine?

The Loring S70 Peregrine can roast a maximum of 70 kg (154 lb) per batch, and it can also run smaller batches down to 15 kg (33 lb). This flexibility makes it suitable for both large-scale production and smaller experimental roasts.

How much energy does the Loring S70 Peregrine save compared to traditional roasters?

The Loring S70 Peregrine saves up to 80% in energy usage compared to conventional coffee roasters. In the U.S., this equates to approximately $30,000 in annual gas savings based on typical usage patterns.

Does the Loring S70 Peregrine produce any smoke or require an exhaust vent?

No, the Loring S70 Peregrine is a smokeless roaster. It uses a closed-loop system that converts smoke into water vapor and recirculates it inside the roasting chamber. The only output is minimal excess heat, and there’s no need for a traditional smoke stack or external vent.

Is the Loring S70 Peregrine easy to operate?

Yes, it features an intuitive touchscreen control system that allows roasters to manage every minute of the roast process. The machine also offers optional remote control via iPad or other internet-connected devices, and it automatically handles bean dropping, discharging, and cooling.

What kind of internet connectivity does the roaster have?

The Loring S70 Peregrine can connect to the internet for data uploads, software updates, and remote service assistance. Manufacturers can monitor and diagnose issues remotely, and users can also control the roasting process online.

What are the physical space requirements for installing the Loring S70 Peregrine?

The roaster requires a minimum ceiling clearance of 12 feet (3.7 m), 3 feet (0.9 m) of clearance to walls, and an 8-inch insulated double-wall exhaust stack. Its footprint is 88 square feet (8.1 square meters), with overall dimensions of 136 inches deep by 93 inches wide (345 cm × 235 cm).

Recommended FrontStreet Beans for Loring Roasting

For roasters using the Loring S70 Peregrine, FrontStreet Coffee’s Ethiopia Humbera offers bright citrus, floral jasmine, and sweet peach notes—perfect for highlighting the roaster’s clean, oxygen-free profile. The Yirgacheffe delivers juicy blueberry, bergamot, and light tartness, ideal for showcasing the machine’s flavor clarity. Also try the Brazil Queen Manor with its nutty chocolate, almond, and soft berry balance for a versatile espresso or filter base. All are freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.