Part 5/8:
Post-cooling, peanuts undergo blanching, where rollers or abrasion machines loosen and remove the skins. Some blanching equipment also splits the peanuts to eliminate the germ—the small embryo that can impart a bitter taste. Following blanching, optical sorters remove discolored, burnt, or damaged peanuts, ensuring only the best quality nuts proceed further.
Grinding into Peanut Butter
The cleaned peanuts are then ground into a paste through a two-step process. Primary grinding uses coarse steel plates or hammers to produce a grainy paste. This is followed by fine grinding with stone or disc mills, giving peanut butter its signature smooth and creamy texture.