Coffee
Coffee is a brewed beverage made from roasted coffee beans, which are the seeds of berries from the Coffea plant. Coffee is one of the most widely consumed beverages globally, cherished for its rich flavor and stimulating properties. Derived from the seeds of berries from the Coffea plant, coffee undergoes a detailed process from cultivation to brewing. However, coffee is more than just a drink; it is also a significant bulk material, particularly when dealing with its powdered form, which presents unique challenges in bulk material handling.
At a Glance
The production process involves multiple steps, from cultivation and harvesting to roasting and brewing, each impacting the final flavor and quality. Coffee, specifically in its unroasted (green) and roasted forms, is a significant agricultural commodity. The two primary species of coffee plants are Coffea arabica and Coffea canephora (commonly known as robusta). The process from coffee cherry to cup involves several stages: harvesting, processing, drying, milling, roasting, grinding, and finally brewing.
Key Characteristics
- Acidity: Coffee's acidity contributes to its brightness and liveliness, varying by bean type and roasting process. High acidity is desirable in specialty coffees.
- Abrasiveness: Coffee grounds can be abrasive, which is advantageous in cleaning applications but can cause wear in industrial equipment.
- Corrosiveness: Generally, coffee is not highly corrosive. However, moisture in coffee grounds can cause rusting in metal components if not properly managed.
- Density and Flowability: Coffee beans and grounds have varying densities and flow properties, influenced by roasting level and grind size. This affects how they are handled in bulk.

Common Uses
Coffee's primary use is as a beverage, enjoyed in various forms such as espresso, latte, cappuccino, and black coffee. Beyond drinking, coffee has applications in culinary arts, often used in desserts, marinades, and flavorings. Coffee grounds are also used as a natural fertilizer, in composting, and even in skincare products due to their exfoliating properties.
- Beverage Preparation: The most common use of coffee is in brewing beverages, where it is ground and extracted.
- Flavoring Agent: Coffee is also used as a flavoring agent in various food products, including desserts, sauces, and baked goods.
- Cosmetics and Skincare: Coffee grounds and extracts are used in skincare products for their exfoliating and antioxidant properties.
- Industrial Applications: Coffee waste products can be utilized in composting, biofuel production, and as a component in certain materials.

Challenges in Conveying
Handling coffee in bulk presents several challenges:
- Dust Generation: Fine coffee grounds can create dust, posing health risks and explosion hazards.
- Product Segregation: Inconsistent particle sizes can lead to segregation during handling, affecting the uniformity of the product.
- Hygroscopic Nature: Coffee can absorb moisture from the environment, leading to clumping and flow issues.
- Degradation: Physical handling can cause breakage and degradation, impacting quality.
- Equipment Wear: The abrasive nature of coffee grounds can cause significant wear on conveying equipment.
- Moisture Sensitivity: Coffee is hygroscopic and can absorb moisture from the air, leading to clumping and spoilage.
Equipment Options
TipTrak™ Bucket Elevators
TipTrak™ Bucket Elevators are an ideal solution for handling coffee, especially in vertical conveying. These elevators offer:
Gentle Handling: Prevents degradation and maintains product integrity.
Dust-Tight Construction: Reduces dust generation and contamination risks.
Ease of Cleaning: Ensures hygiene and quick changeovers between different batches or products.
UniFlex Flexible Screw Conveyors
For versatile conveying, UniFlex Flexible Screw Conveyors are well-suited for coffee:
Flexibility: Adaptable to various layouts and distances, fitting into existing processing lines easily.
Simplicity and Cost-Effectiveness: Low initial cost and maintenance requirements.
Continuous Flow: Ensures consistent feed rates and minimizes segregation.
Powderflight Aeromechanical Conveyors
Powderflight Aeromechanical Conveyors provide efficient handling for fine coffee powders:
High Throughput: Capable of moving large volumes quickly.
Minimal Product Degradation: Reduces breakage and maintains particle size.
Dust Control: Effectively manages fine particles and reduces explosion risks.
Bulk Bag Loader/Unloader
For loading and unloading bulk quantities of coffee, the Bulk Bag Loader/Unloader is optimal:
Ergonomic Design: Facilitates easy and safe handling of large bags.
Dust Containment: Minimizes dust exposure during loading and unloading.
Customizable Options: Tailored to specific bag sizes and materials.
UniTrak's extensive experience in customized bulk material handling equipment makes it the perfect partner for managing coffee and other complex materials. Our solutions, such as TipTrak™ Bucket Elevators, UniFlex Flexible Screw Conveyors, Powderflight Aeromechanical Conveyors, and Bulk Bag Loaders/Unloaders, are designed to address the unique challenges of conveying coffee. With a commitment to quality, innovation, and customer satisfaction, UniTrak ensures efficient, safe, and reliable handling of your valuable products.
