Technical Keys to Better Flavor in Multilayer Belt Roasting Ovens
Why precision engineering is essential for consistent, high-quality nut roasting.

Where Engineering Meets Taste
In industrial food production, flavor is not just a matter of ingredients—it's a result of controlled heat, airflow, and timing.
At Şevval Technology, our Multilayer belt roasting ovens are engineered to elevate flavor, especially in nut processing where subtle texture and aroma define product quality.
So what makes our ovens stand out? Let’s break down the 3 core technical features that transform raw nuts into premium products.

1. Multilayer Belt Roasting: A Step-by-Step Heat Journey
Most conventional roasters operate on a single layer—forcing the nut through a rapid, uneven heating process.
In contrast, our 5-layer system introduces a gradual roasting experience across multiple heat zones.

How It Works:

• Each layer acts as a new thermal zone with customizable airflow and temperature.
• As nuts move from one belt to the next, they undergo progressive roasting, mimicking a slow-cook method at an industrial scale.

Example:

• For products like sunflower seeds, the shell remains crisp without burning, while the inner kernel develops a fuller aroma.
• Almonds benefit from gentle initial heat on the top layers, reducing surface oil loss and preserving texture.

Outcome:

• Evenly roasted nuts
• Enhanced color and aroma
• Reduced waste from over-roasted batches

2. Moisture Extraction & Air Circulation: Controlling Flavor Retention
Moisture levels and air movement play a critical role in taste.
Without proper control, roasted nuts may turn out bitter, too dry, or with an inconsistent bite.

Our Solution:

• Built-in moisture exhaust systems remove excess humidity and burnt gas.
• Controlled air curtain technology maintains a clean heat environment—free from contamination or flavor distortion.

Example:

• In hazelnut roasting, excess moisture can lead to a rubbery texture. Our system ensures sharp, crisp results with retained natural oils.
• For chickpeas, balanced air pressure prevents cracking and preserves outer shell integrity.

Benefit:

• Balanced flavor profile
• Longer shelf life
• Clean roasting chamber for better hygiene

3. Smart Thermal Sensors: Data-Driven Roasting Precision
Consistency is everything in industrial production.
Our machines are equipped with multiple thermal sensors that offer real-time monitoring and adjustment during the entire roasting cycle.

Key Features:

• Temperature deviation is limited to ±1°C
• Data can be monitored via touchscreen interface or remote control panel
• Heat zones auto-adjust based on product density and load weight

Example:

• When roasting a dense product like pistachios, the system compensates with higher base layer heat while protecting the outer shell from over-drying.
• During lighter batch loads, heat is redistributed to maintain efficiency.

Result:

• Repeatable quality
• Batch-to-batch standardization
• Less manual intervention required

Conclusion: Flavor Begins with Engineering
Perfect taste doesn’t come from guesswork—it comes from precision.
With Şevval Technology’s 5-layer roasting ovens, your production line gains:

• A scalable system for various nut types
• Higher aroma retention
• Smart automation for consistent output
• Energy-efficient performance without sacrificing quality

Contact our technical team to see how the right roasting technology can boost your product’s market value.