The addition of liquids to powder or granule mixtures places high demands on mixing technology. The most common challenges include:
Lump formation
If the liquid is applied in a concentrated patch or is not distributed evenly, agglomerates and damp pockets will form. These impair product quality and can complicate subsequent process steps.
Inconsistent distribution
An uneven distribution results in some product areas receiving too much of a substance and others too little. This is particularly critical in the case of highly potent additives such as vitamins, enzymes or flavourings.
Damage to sensitive products
High shear forces or aggressive mixing tools can damage delicate raw materials. This applies in particular to tea leaves, herbs, spices, cereals and other products where texture is critical.
Extended processing times
Inefficient mixing systems require longer mixing times to incorporate liquids fully. This increases energy consumption and reduces productivity.