How does continuous soapmaking reduce the time needed to make soap?

Continuous soapmaking significantly reduces production time—from the 4 to 11 days required by traditional boiling methods to just a few hours—by streamlining the chemical process and eliminating the need for lengthy settling periods.1

The efficiency of this method stems from several key factors:

• Use of Fatty Acids: Unlike traditional processes that use natural fats, continuous systems often employ purified fatty acids. Because these acids are already free of impurities and do not produce glycerin as a by-product during neutralization, the time-consuming steps of removing glycerin and impurities are unnecessary.1
• Precise Control: The process utilizes automated systems, such as flowmeters and metering pumps, to feed ingredients into the system. Real-time monitoring with pH meters and conductivity instruments allows for precise, immediate adjustments to the mixture.1
• The Hydrolyzer Process: In this specific continuous method, natural fats are split into fatty acids and glycerin in a vertical column using high temperature, pressure, and a catalyst. This allows for the continuous introduction of raw materials and the simultaneous withdrawal of products, drastically accelerating the transformation from raw fat to finished soap.1