For decades, the JET has been developed to trigger the saponification (or neutralization) processes. However, despite its efficiency, the JET has been utilized only in some areas of the world or by certain multinational companies.
The main feature of the JET is the immediate start of the reaction in a minimal volume, internal to the JET. Thanks to the energy passed by a small flow of live steam (kinetic and thermal), the pumped reagents (oil blend and alkali) immediately form a stable homogeneous emulsion which flows out the JET.
The emulsion consists of freshly produced soap, oil, alkali, water, etc. In this environment, the reagents continue to saponify without any additional energy supply.

In a conventional saponification process, the initial reaction is slow, while with the JET, such stage is immediately completed, and the saponification easily reaches its linear reaction phase.
The JET is a general‐purpose tool that can be used in Semi‐Boiled processes in combination with an Atmospheric Continuous Reactor or a Batch Crutcher as well as in Full‐Boiled plants on top of Kettles.

In a conventional saponification plant, the use of a too concentrated caustic soda solution (i.e., 50% NaOH) results in a non-homogeneous soap mass. Furthermore, such soap tends to be highly viscous and cannot be easily pumped in continuous reactors based on high recirculation processes. These facts determine a lower limit of water content in the neat soap.

This lower limit can be sensibly reduced in a JET saponification, thanks to the formation of a stable emulsion in a very small volume.
In addition to this, the Atmospheric Reactor or the Crutcher properly operates with any viscosity of the soap, thanks to their design.
In the case of Semi‐Boiled (swing) saponification, the JET allows the production of Concentrated or Semi‐Concentrated Soap. Practically, it produces a neat soap with the preferred moisture level, avoiding the addition of process water, which would then be expensive to evaporate.
A JET Noodling Plant can be completed with a Drying Plant (Drying and Cooling Section) or with a simpler and more economical Cooling Section based on a Chill‐Rill (Drum‐Flaker).
The Chill‐Roll option can produce semi‐boiled laundry and even toilet soap.