Souji – The Circular Revolution for Hospitality

Souji (www.souji.es) is a Spanish company that has developed a unique and patented technology capable of transforming used cooking oil into effective and environmentally sustainable cleaning products in just a few minutes. In this podcast, we speak to Sergio Fernandez, the CEO of SOUJI. 

Souji offers a flexible solution that combines sustainability, practical circular economy practices, and operational efficiency. The products are effective, environmentally friendly, and allow businesses to reduce cleaning supply costs, lower their carbon footprint, and ensure full and transparent waste traceability.

SOUJI’s on-site solution is designed for establishments that prioritize sustainability, as well as those located in remote areas or facing logistical challenges where home collection is costly or unfeasible. This includes islands, mountainous regions, or cruise ships. It enables the safe and immediate production of cleaning products for internal use, including multi-surface cleaner, dishwashing liquid, laundry detergent, and carpet cleaner.

The industrial model is designed for clients who prefer not to change their current operations. The used oil is collected as usual, processed at scale, and returned with finished cleaning products that are ready to use.

Sergio explains to our listeners that SOUJI also offers a hybrid model, ideal for companies that generate more oil than they consume. A portion is transformed on site, while the surplus is collected for industrial processing.

There are three key reasons why SOUJI is especially useful for hotels and restaurants:

· Cost efficiency: The resulting detergent is competitively priced compared to other high-quality professional cleaning products

· True and local circular economy: No need to transport or process used oil off-site, reducing emissions, costs, and administrative burden

· Brand enhancement: A visible and concrete sustainable action that can be proudly communicated

SOUJI (www.souji.es) also provides valuable operational advantages. The system is fully automated, easy to use, fast, safe, and hassle-free for staff.  SOUJI is particularly beneficial in environments with greater logistical challenges, such as cruise ships, where waste management is more complex and operational autonomy is crucial, as well as in rural areas, remote regions, and islands.