Cleaning & Aspiration

Cleaning and aspiration are essential initial steps in rice milling.

• Sifting Out the Bad Stuff: Large impurities like stones and twigs are removed using screens.
• Blowing Away the Dust: Air currents, or aspiration, blow away dust, chaff, and other light impurities.
• Magnetic Magic: Magnetic separators pull out any hidden metal pieces. With these steps, we ensure that only the best quality paddy moves on to the next stage of the milling process.

Parboiling drying

Harvest The rice milling process begins with the harvesting of paddy, the unhusked rice. This is a crucial step that significantly impacts the quality of the final rice product.

Timing: The optimal time for harvesting is determined by the moisture content of the paddy. If harvested too early, the grains may be immature and of poor quality. If harvested too late, the grains may be overripe and susceptible to damage.

Parboiling (Optional) Parboiling is a process that involves soaking, steaming, and drying the paddy before milling. It is an optional step, but it can significantly improve the nutritional value, cooking quality, and shelf life of the rice.

Soaking: The paddy is soaked in water for a specific period to soften the bran layer.

Steaming: The soaked paddy is steamed to gelatinize the starch, making it more digestible.

Drying: The steamed paddy is dried to reduce moisture content.

Parboiled rice has several advantages:

Higher Nutritional Value: Parboiling increases the retention of vitamins and minerals.

Improved Cooking Quality: Parboiled rice cooks faster and has a firmer texture.

Longer Shelf Life: Parboiled rice is less susceptible to spoilage and insect infestation.

By carefully harvesting and, if desired, parboiling the paddy, rice millers can ensure the production of high-quality rice that meets the needs of consumers.

Hulling

Hulling is the initial step in the rice milling process, where the outer husk of the paddy grain is removed. This process is crucial to expose the inner kernel, which will be further processed to produce white rice or brown rice.

Hulling Process:

Paddy Feeding: The cleaned paddy is fed into the hulling machine.

Impact Shelling: The paddy grains are subjected to impact forces, which crack the husk and separate it from the kernel.

Separation: The mixture of hulled rice (brown rice) and husk is passed through a separator.

Air Aspiration: Air is used to remove the lighter husk particles from the heavier brown rice.

Whitening and polishing

Whitening and polishing are essential steps in the rice milling process, transforming brown rice into white rice. These processes remove the bran layers and polish the grain to improve its appearance and cooking quality.

Grading

Grading is a crucial step in the rice milling process, ensuring that the final product meets specific quality standards. It involves sorting the rice based on various factors such as size, shape, color, and broken grain content.

Grading Process:

Size Grading: Rice grains are separated into different sizes using sieves. This helps in categorizing the rice into different grades, such as long grain, medium grain, and short grain.

Shape Grading Rice grains are sorted based on their shape, whether it's slender, round, or oval.

Color Grading: Color sorters are used to identify and remove discolored grains, ensuring a uniform appearance.

Broken Grain Removal: Broken grains are separated from whole grains using sieves and air aspiration.

Sorting rice

Sorting is a critical step in the rice milling process, ensuring that only the highest quality grains reach the consumer. It involves separating the rice based on various factors such as size, shape, color, and broken grain content.

Rice is passed through a series of sieves with different mesh sizes to separate grains based on size.

Color Sorting: Advanced color sorters use sophisticated technology to identify and remove discolored grains, broken grains, and foreign materials.

Gravity Separation: Gravity separation is used to separate grains based on their specific gravity.

By employing these sorting techniques, we ensure that the final product is free from impurities, uniform in appearance, and meets the highest quality standards.