Rice Mill Functioning Guide for Rice Milling Businesses

Modern rice mills use a sequence of machines to convert rough paddy into polished, market-ready rice.

Paddy Dehusking Process

Paddy is fed between two counter-rotating rubber rollers that generate friction to remove the husk without breaking the grain. Modern rice mills use Rice Rubber Rollers made from Nitrile (NBR) rubber – replacing older iron roll systems that caused higher grain breakage.

Whitening or Polishing

After dehusking, brown rice passes through whitening machines with whitener stones (silicon carbide abrasives) that remove the bran layer to produce polished white rice.

By-Products

• Husk: used in boilers for energy generation
• Bran: processed into Bran Oil
• Broken rice: sold separately or processed into flour