Complete Cocoa Powder Processing Flow

Raw Cocoa Beans → Destoning & Metal Separation → Roasting → Cooling → Winnowing/Shelling → Nib Grinding (Cocoa Liquor) → Hydraulic Pressing (Cocoa Butter & Cake) → Cake Breaking → Pulverizing → Sieving → Automated Packaging

Each stage is carefully controlled to ensure consistent particle size, excellent aroma, and high cocoa powder yield.

Main Processing Steps

• Cleaning: Removes dust, stones, metal particles, and other impurities to protect downstream equipment.
• Roasting: Develops the characteristic chocolate aroma while reducing bean moisture to approximately 2–3%, improving shell separation and flavor stability.
• Winnowing: Efficiently separates cocoa shells from nibs, reducing shell content and improving cocoa liquor quality.
• Grinding: The cocoa grinding machine converts cocoa nibs into smooth cocoa liquor with particle sizes typically below 100 μm.
• Hydraulic Pressing: Separates cocoa butter from cocoa liquor to produce cocoa cake with controlled residual fat content (generally 10–22%).
• Pulverizing: Grinds cocoa cake into fine cocoa powder suitable for beverages, chocolate, bakery, dairy, and confectionery products.
• Sieving & Packaging: Ensures uniform particle size before automatic weighing, bagging, and sealing.

Main Equipment of the Cocoa Powder Production Line

1. Cocoa Bean Roaster Machine

The cocoa bean roaster machine is one of the most critical pieces of equipment in the entire cocoa processing line. The degree of roasting directly affects the aroma, flavor, moisture content, and final quality of the cocoa powder.

Our continuous belt-type roasting system features:

• Automatic temperature control
• Variable-speed conveyor belt
• Hot air circulation system
• Uniform heat distribution
• PLC control system (optional)

Cocoa beans are evenly spread on a stainless steel mesh conveyor belt, and hot air circulates uniformly from below to ensure even roasting. Precise temperature control minimizes over-roasting while maximizing flavor development.

Advantages:

• Uniform roasting
• Low energy consumption
• Stable product quality
• Suitable for continuous industrial production

2. Cocoa Bean Peeling (Winnowing) Machine

After roasting, beans pass through a cooling conveyor before entering the winnowing or peeling machine. This specialized equipment integrates crushing rollers, a trapezoidal vibrating screen, and an air separation system. The crushing rollers crush the brittle roasted beans, separating the husks from the cocoa nibs. The vibrating screen sorts the mixture into four different grades, while a dust collector at the discharge end removes the lighter husk fragments. High-quality cocoa nibs are collected for further processing, with a dehusking rate exceeding 98% and a processing capacity of 300–500 kg/h.

3. Cocoa Grinding Machine

The cocoa grinding machine (colloid mill) is the core equipment for cocoa paste production. This equipment reduces shelled nibs into a fine, fluid cocoa paste through a combination of shearing, grinding, and homogenization.

In addition to cocoa processing, this equipment is also widely used for grinding peanut butter, sesame paste, almond paste, and various other food ingredients.

Advantages:

• Stainless steel construction
• Adjustable grinding fineness
• High production efficiency
• Easy cleaning and maintenance
• Food-grade hygienic design

4. Hydraulic Oil Press (Cocoa Butter Extraction)

The hydraulic oil press extracts cocoa butter from the cocoa liquor, producing cocoa cake for subsequent cocoa powder production.

Manufactured from food-grade stainless steel, this oil press offers the following advantages:

• High oil extraction efficiency
• Stable hydraulic pressure
• Water-cooling system
• Short pressing cycle (8–12 minutes)
• Suitable for small and medium cocoa factories

The extracted cocoa butter can be used in chocolate manufacturing, cosmetics, pharmaceuticals, and food processing, among other fields.

5. Cocoa Powder Pulverizer

The pulverizer converts cocoa cake into ultrafine cocoa powder with uniform particle size.

Its precision-machined stainless steel grinding chamber enhances grinding efficiency while simplifying cleaning and maintenance.

Features:

• High-speed fine grinding
• Uniform powder fineness
• Durable stainless-steel structure
• Hygienic food-grade design
• Stable continuous operation

Why Choose Our Cocoa Powder Production Line?

• High-Quality Products: Precise roasting, efficient air classification, and fine grinding ensure a rich cocoa aroma, uniform powder fineness, and consistent product quality.
• Flexible Modular Design: Customizable options range from basic roasting-grinding-pressing combinations to fully automated production lines equipped with CIP cleaning, alkali treatment (Dutch process), and lecithin addition capabilities.
• Seamless Integration: Pre-engineered interfaces connect with upstream cleaning/grading lines and downstream powder blending/conching systems, enabling “bean-to-bar” or “bean-to-powder” single-source execution.
• Energy Efficiency: Variable frequency drives reduce energy consumption by 20%; tool-free access panels and quick-release grinding elements cut maintenance time to ≤4 hours per week.
• Turnkey Engineering Support: Our services include plant design, equipment manufacturing, installation, commissioning, operator training, and after-sales technical support.

By choosing our turnkey cocoa powder production line, you gain not only the equipment but also process expertise—including start-up assistance, operator training, and remote troubleshooting. This integrated solution can increase your production capacity by at least 40% while reducing labor costs per metric ton by up to 60%.

Ready to take your cocoa processing to the next level? Contact our engineering team for a customized layout plan, 3D simulations, and ROI projections. We offer global shipping, along with installation guidance and spare parts support.