SOUJI cold saponification technology for sustainable cleaning products from used vegetable oils

Overview

SOUJI introduces a patented cold saponification method that converts used vegetable oils into multi-purpose cleaning products without the need for caustic soda, potash, or other corrosive or toxic substances. The process completes in approximately one minute and requires no energy input, representing a significant departure from conventional soap and detergent manufacturing. The technology enables a fully circular approach by recycling waste cooking oils into high-performance detergents suitable for laundry, dishwashing, floor cleaning, surface cleaning, and even cosmetic applications.

The innovation is protected by intellectual property filings in more than fourteen countries and has received a Certificate of Excellence from the European Commission along with multiple awards for innovation and sustainability. Formulations have been adapted and validated for three distinct markets: domestic (already commercially available), HORECA including hotels, restaurants, and cafeterias (currently in real-environment pilots), and industrial large-scale manufacturing (validated through pilots).

Technical specifications

Core innovation:

• A novel cold saponification system that reacts used vegetable oils in approximately one minute
• No caustic soda, potash, toxins, or corrosive substances required
• Zero energy cost during the saponification reaction
• Adaptable formulations for specific applications including laundry detergent, dishwasher products, floor cleaners, surface cleaners, and cosmetics

Market-ready features:

• Domestic market formulation already in market
• HORECA formulation undergoing real-environment pilot validation
• Industrial formulation validated for large-scale manufacturing pilots
• Flexible to different formats, aromas, and uses
• Low-cost manufacturing suitable for in-situ recycling in any country

Technology readiness level

The saponification method has been validated in laboratory settings and confirmed through market results described as extraordinary. Intellectual property protection has been secured in more than fourteen countries. The domestic market formulation is commercially available, while HORECA and industrial formulations are at the pilot validation stage. The technology is positioned for further scaling across additional markets, uses, formats, and fragrances, with an emphasis on enabling local, low-cost production and recycling in situ.