Low-power acoustic control of crystal nucleation for direct form V cocoa butter production

Overview

This patented acoustic technology uses low-power, non-cavitational ultrasound to control crystal nucleation and polymorph selection in lipid systems. The approach enables cocoa butter and chocolate manufacturers to achieve the desirable Form V polymorph directly from the melt, without the need for conventional tempering, seeding agents, or chemical additives. The same underlying intellectual property has already been demonstrated to separate stearin and olein fractions in anhydrous milk fat without chemical modification, indicating broad applicability across edible fats and related crystallisation processes.

For chocolate producers, confectioners, and ingredient suppliers, the technology offers a route to cleaner labels, simplified processing, and improved product consistency, while preserving the organoleptic qualities of the fat. It is supported by an issued patent and peer-reviewed experimental and theoretical validation.

Technical specifications

Key features:

• Low-power, non-cavitational acoustic field applied during cooling of the melt to drive controlled nucleation
• Polymorph-selective crystallisation, targeting Form V in cocoa butter without tempering or additives
• No chemical modification required; preserves taste, texture, and nutritional properties of the fat
• Applicable to anhydrous milk fat fractionation (stearin and olein separation) and to wax crystallisation
• Underlying IP owned by the inventor, with an industrial-scale prototype designed and built in-house
• Mathematical-physical model of acoustic nucleation supported by laboratory and pilot plant scale experimental data

Technology readiness level

The technology has reached pilot plant scale proof of principle in related lipid systems, including anhydrous milk fat and waxes, as documented in peer-reviewed work. An industrial-scale prototype has been constructed and is available for further validation. The next stage involves demonstrating direct Form V crystallisation of cocoa butter from the melt using the existing pilot equipment, which represents the critical step toward commercial deployment in chocolate and confectionery manufacturing.