Raw Materials Technologist

Recruiter:

HR Genie

Job Ref:

1211309

Date posted:

Monday, April 20, 2026

Location:

Wilsonia, South Africa

Salary:

Market related

SUMMARY:
Monitoring, testing, and verifying the quality of preforms, closures and CO2 throughout production

POSITION INFO:

Raw Materials Technologist

Operations

Ensure that all packaging and carbon dioxide meet stringent food safety, quality, regulatory & customer

standards. Contributing to the production of high-quality raw materials

Job Purpose

Monitoring, testing, and verifying the quality of preforms, closures and CO2 throughout the production

process to prevent defects, ensure compliance with specifications, and minimize business risks. Conduct

inspections and analyses to maintain product consistency, traceability, and adherence to customer and

legal requirements, ultimately protecting the brand's reputation and consumer safety.

Key Accountabilities and Outputs

Raw Material Inspection

Conduct inspection of raw materials received pertaining to the manufacture of preforms and closures
Ensuring compliance to buying specifications
Ensure that resin conforms to IV and AA standards
Raise NCRs pertaining to any deviations/nonconformities with raw materials such as resin

Finished Product Evaluation

Preforms

Conduct tests on preforms to determine weight and length conform to specification
Test for ovality, IV and AA
Inspect preforms for defects such as cracks, holes or perforations, damaged thread finish, broken/cracked neck flange, presence of foreign materials, haziness and other defects
Inspect preforms for defects such as nicks, warping, or dimensional inaccuracies that could affectblow-moulding and sealing.
Perform Sensory Analysis for foreign odours and ensure colour conforms to standard

Closures

Measure preforms to determine height, weight, external diameter
Perform secure seal testing
Perform Sensory Analysis for foreign odours and ensure colour conforms to standard
Inspect preforms to check for ovality, integrity of the ID safety band, pilfer band and inner seal plug
Where closures are branded, ensure that the branding is legible, clear and centred
Inspect for scratched or blurred graphics
Inspect closures to ensure there are no cracked or deformed shells and other defects
Test closures for ovality, liner integrity, seal strength, and application torque to prevent leaks or tampering.

Carbon Dioxide

Perform hourly analysis of purity and ensure compliance to SANS 532 and ISBT standards
Perform analysis for impurities
Monitor CO2 process efficiency
Perform sensory analysis and escalate any off odours and any foreign bodies to Operations
In process checks on operational efficiencies of the boiler and burner

Document Control and Record Keeping

Ensure the accurate and complete compilation of all records and control of documentation

Verification

Verify that preforms, closures, and related materials conform to specifications, recording batch numbers for traceability and reporting any non-conformances to supervisors.

Process Control

Ensure that the manufacturing process remains within specification
Any deviations from the manufacturing process is investigated for the root cause and the appropria

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