How High Shear Mixing Improves Confectionery Processing - Flow Control Group

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FCG_Admin October 6, 2026 0 Comments

Confectionery products often rely on gums, stabilizers, and thickening agents to create the required texture and mouthfeel. These ingredients can also make mixing difficult.

Materials such as locust bean gum, pectin, xanthan, carrageenan, and acacia can form agglomerates when added to liquid. When that happens, manufacturers may need longer mixing times, additional processing steps, or more raw material to achieve the desired consistency.

High shear mixing can help address these challenges by applying enough mechanical energy to break down agglomerates and improve dispersion.

Why Gums and Thickeners Are Difficult to Mix

Many hydrocolloids and thickening agents hydrate quickly when they contact liquid. If the outer surface of a powder particle hydrates before the interior is fully dispersed, it can trap dry material inside and create a lump or “fish eye.”

These agglomerates can be difficult to eliminate with conventional agitators because the mixer may circulate them through the batch without generating enough shear to break them apart.

The result can be longer batch times, inconsistent texture, and wasted ingredients.

How High Shear Mixing Helps

High shear mixers are designed to create stronger velocity gradients and mechanical forces than conventional low-shear agitators.

That additional shear can help:

  • Break down agglomerates
  • Improve powder dispersion
  • Promote more uniform hydration
  • Reduce the formation of fish eyes
  • Shorten the time required to reach a homogeneous mixture

Depending on the formulation and process, high shear equipment may also reduce the need for premixing dry ingredients before they are introduced into the liquid phase.

High Shear Mixing in Gummy Production

Gummy products illustrate the challenge clearly. The gums used to create elasticity and texture can be difficult to disperse and hydrate evenly.

Conventional stirrers may require longer processing times or additional preparation steps to achieve a consistent blend. A high shear mixer can apply more energy to the mixture, helping break apart agglomerates and distribute the gum more evenly throughout the batch.

The appropriate mixer configuration depends on the specific formulation, viscosity, batch size, temperature, and required final texture.

Using High Shear Equipment for Reclamation

High shear equipment can also support reclamation or rework of off-spec product.

Instead of discarding material that does not meet the desired particle size or consistency, manufacturers may be able to reprocess it and return it to production, depending on the product and quality requirements.

This can reduce waste, particularly when expensive ingredients are involved.

Temperature Control Still Matters

More aggressive mixing does not eliminate the need to control temperature.

Some confectionery ingredients are temperature-sensitive. Chocolate is one example, while gelatin is another. The source notes that gelatin structure can begin to break down at temperatures above approximately 160 degrees F (70 degrees C).

For processes involving heat-sensitive ingredients, mixer selection and operating conditions should therefore consider both shear and temperature.

High Shear Mixing and Particle Size Reduction

In addition to mixing and dispersion, some high shear systems can support deagglomeration and particle size reduction.

Equipment such as the Quadro Comil series is used for applications including size reduction, deagglomeration, and reclamation of off-spec material.

These capabilities can be useful when manufacturers need to control particle size before, during, or after other confectionery processing steps.

Match the Mixer to the Formulation

High shear mixing can improve confectionery processes that involve difficult-to-disperse gums, stabilizers, and other powders, but the equipment should still be selected around the formulation and process requirements.

Important considerations include viscosity, temperature sensitivity, ingredient behavior, batch size, required particle size, and whether the process includes reclamation or rework.

When those factors are evaluated together, high shear mixing can help reduce agglomeration, improve consistency, and simplify challenging confectionery mixing applications.