Dairy Processing

Process & filtration objectives

Dairy products contain fat globules, proteins and other dispersed components intended to remain. When evaluating filtration of raw milk or formulated emulsions, distinguish foreign-matter capture from product separation; ordinary cartridges are not universal dairy purification devices.

Ingredients, water, gases and cleaning circuits each create additional duties. Separating product-contact paths from utility paths makes it easier to assess ingredient retention, cleanability and contact materials.

Typical process pathway

01
Raw-material receipt
Record material type, temperature and visible foreign matter, identifying the fat and protein components to retain.
02
Ingredient preparation
Set separate particle objectives for sugar solutions, water and filterable ingredients rather than transferring whole-milk data.
03
Product transfer
Assess flow and retained volume with the actual formulation, including temperature, viscosity and changes during holding.
04
Utilities and cleaning
Review contact gases, process water and cleaning-liquid paths independently, including material compatibility and drainage.

This is a typical task pathway. Confirm sequence, equipment and operating conditions for the project.

Filtration points & selection rationale

Process point	Filtration task	Selection rationale
Raw-material inlet	Manage unwanted coarse foreign matter	Avoid classifying normal fat or protein structures as contamination.
Ingredient mixing	Control particles introduced with ingredients	Consider dissolution state, viscosity and formulation retention.
Contact gases and water	Manage particles in utility streams	Review sanitary handling and specific filtration duties separately from the product path.

Verification & operating records

Evaluation item	Recording & comparison
Composition retention	Compare fat, protein or other relevant attributes against product requirements, investigating sources of material loss.
Operation and hold-up	Record flow, pressure loss and residual liquid after drainage, considering its effect on maintenance.
Cleaning suitability	Match actual cleaning fluids and cycle conditions to assembly material documentation, retaining cleaning assessment records.

Application questions

Can an ordinary microfilter be used directly for every dairy product?

No. Dispersed phases and viscosity differ, as do the structures and objectives of foreign-matter capture and specialized membrane separation.

Does filtration replace existing heat treatment or sanitary controls?

That conclusion cannot be drawn here. Product processing and quality requirements need independent assessment, with the filter considered as one component of the complete operation.