I. Introduction of Extrusion Precooked Cornmeal

Pre cooked cornmeal is processed by roasting or extruding the raw corn flour. When food is processed with precooked cornmeal, the cooking time is short, and the food texture is usually crispy on the outside and soft on the inside. It has a wide range of uses in food preparing, such as making dishes, bakery goods, fast food products, meat preparations and soups. Combined with other ingredients, it becomes nutritious corn flour for drinking purpose, and can also be used as raw material for various corn snack foods.

Extrusion technology is one of the main methods of processing pre-cooked cornmeal, which is easy to operate and of high efficiency. By adjusting the extrusion process (such as extrusion temperature, pressure, time, etc.), precooked cornmeal with different expansion degrees and different features can be obtained. The raw material for producing extruded cornmeal can be corn grits (from which the germ has been removed) or whole corn kernels. Using corn grits as raw material, puffed corn flour can be directly produced through the food extruder. While, using whole corn kernels as raw material, a complete set of degerming system should be configured at the beginning of the entire cornmeal food processing equipment. It removes corn husks and corn germs to get corn grits first, and then is extruded.

Note: Since corn germ is rich in oleic acid, linoleic acid, and vitamin E, which easily cause deterioration during storage, the germ must be removed before it is processed into cornmeal. The removed by-product corn germ can be separately processed into corn germ oil or corn germ meal.

II. Parameters of 400-500kg Cornmeal Food Processing Equipment

III. Features

• Finished Food Quality Ensured: Optimal extrusion solution, premium equipment design, and equipment processing ensure high-level and stable production.
• High Output: High designed capacity; minimal material loss;
• Less Energy: High mechanical coordination, low wear; optimized heating, thermal transfer& insulation details, low heat loss
• Low Production Cost: Flow production, precise control of each process
• Simple and Low Cost Maintenance: Modular structure, easy operation. Lifetime after-sales service
• Safe Material: High-quality food-safe materials for all food contact part
• Failure Rate:  Nearly zero failure as long as preventive maintenance

IV. The General flow chart for 300-400kg Precooked Cornmeal Processing

The cornmeal processing of using whole corn grain as raw material:

• Step 1: Whole corns intake&cleaning
• Step 2: Peeling
• Step 3: Degermination
• Step 4: Conditioning
• Step 5: Crushing
• Step 6: Extrusion (Cooking and puffing)
• Step 7: Drying
• Step 8: Crushing
• Step 9: Measuring and packing
• Step 10: Sterilization
• Step 11: Inspection
• Step 12: Finished product

The cornmeal processing of using corn grits as raw material:

• Step 1: Extrusion (Cooking and puffing)
• Step 2: Drying
• Step 3: Crushing
• Step 4: Measuring and packing
• Step 5: Sterilization
• Step 6: Inspection
• Step 7: Finished product

V. Components of 200-300kg Precooked Cornmeal Food Processing Equipment

1. Whole degermination system
2. Twin-screw food extruder
3. Chiller
4. Drying machine
5. Ultra-fine grinding machine
6. Automatic packing system
7. Controlling system (PLC/or instrument control options)
8. Complete conveyors
9. Burner/Steam boiler (optional)

VI. More

Flexibility

• According to market demand, the parameters of this equipment for food processing can be flexibly adjusted to produce a variety of corn-based nutritional powder. For example, it can produce cornmeal of different expansion degrees (low, medium, or high), of different fineness after crushing, or with different grains and nutrients additives, etc.

Potentiality

• By simply adding or skipping some manufacturing steps and changing the control parameters, this food processing equipment can produce other nutritional grain meal, such as rice nutritional powder, oat nutritional powder, nutritional bran powder, etc.

As an industrial food processing equipment manufacturer with more than 30 years of experience in the global market, DAYI service you for your food plant with Optimal food processing proposal, Responsible food processing equipment and Trustworthy technical support.