Quality and certifications
Commitment to excellence
At Oliver, quality is a way of working, not a department. All our processes are focused on ensuring that every cap leaving our plant meets the most demanding standards in the food industry.
ISO 9001
Certified quality management system
Food contact compliant
Approved materials for use with food products
Batch traceability
Complete control and tracking of every production run
Quality control
Control at every stage of production
We check quality from the moment raw material arrives to the dispatch of every batch, leaving nothing to chance.
Raw material control
We verify every batch of polyethylene before it enters production.
In-process dimensional control
Continuous tolerance measurement during injection to guarantee a perfect seal.
Final batch inspection
Dimensional and functional inspection of every batch before dispatch.
Full traceability
Every production run is recorded and traceable from start to finish.
Quality as a way of working
Our commitment to quality
Approved materials
Food-contact-safe polyethylene, compliant with European regulations.
European regulations
We comply with European Union food safety regulations.
Guaranteed precision
Minimal manufacturing tolerances for a reliable seal on every unit.
Continuous improvement
We review and optimise our processes on an ongoing basis.
Qualified team
Specialised staff at every stage of the production process.
Precision machinery
High-precision injection machines and vision control systems.