The sugar manufacturing process involves several steps: 1) Growing and harvesting sugarcane, 2) Preparing the cane for milling by cutting or crushing it to extract juice, 3) Milling the cane using roller mills to extract more juice, 4) Clarifying the extracted juice by removing impurities using chemicals like lime, 5) Evaporating the clarified juice in multiple effects to increase concentration, 6) Crystallizing sugar in evaporator-crystallizers then centrifuging to separate raw sugar from molasses.