Only the best for our customers

Quality

Both the production and quality controls of our European production facilities are subject to strict guidelines. Thanks to group-wide standardized quality processes, our plants can support each other and thus react flexibly to customer requirements.

Standards

Stoelzle quality management

Standardized, group-wide quality processes in our production plants lead to a consistently high level of production quality.

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Certificates and guidelines

ISO 9001
ISO 15378 (GMP)
Active Drugmaster File at FDA and Canada
BRC IOP Food packaging standard

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Quality Management team

Our quality standards

One person operate a check point in production

Quality in processes and products

Quality inspections in accordance with the European, Japanese and US-pharmacopeia
Regular checks of heavy metal content
Microbiological and particle testings
Comprehensive quality controls with state-of-the-art inspection machines
Top-class, cutting-edge production and quality testing facilities

The control parameters are displayed via a screen

Quality standards

Stoelzle aspires toward the constant improvement of its process capability. Our employees, as well as digitalisation and improvement measures, shall support us in this endeavour and we continuously invest in first-class inspection machines and state-of-the-art production systems.

ISO 9001
ISO 15378 (GMP)
Active Drugmaster File at FDA and Canada

One person checks the petri dish with a magnifying glass

Microbiological laboratory

Regular participation in comparative/ring trials (within the Stoelzle Glass Group and with external laboratories) ensures a constant high quality and accuracy of the testing procedures. The tests performed in the microbiological laboratory are focused on three fields:

Microbiological- and particle purity of the produced containers
Environmental monitoring of microbiological and particle count of the air
Monitoring of the hygienic behaviour of the employees

Chemical laboratory

In our well-equipped chemical laboratory, we have years-long experience in a variety of tests for quality assurance and production support. These tests include:

Determination of hydrolytic resistance (inner surface and glass grains) according to the latest versions of E.P./USP, ISO 4802-1 and ISO 719
Measurements of glass colour parameters and density
Monitoring of selected raw material parameters (e.g. content of iron, alumina, sulphate)

Technical customer service

We support our customers before, during and after bottling. With proactive customer visits, we enable a smooth and hassle-free conversion to new items. We are also happy to provide you with technical support for on-site test bottling.

Benefit from:

A global network of client advisors
Our technical customer service
Pro-active customer visits and support

Continuous improvement

As Stoelzle team we are constantly working on optimizing our processes. In order to increase our efficiency, we use a variety of in-house systems:

Stoelzle Ideas Management: Ideas and suggestions coming from Stoelzle employees.
CAPA: We solve problems and identify causes using a structured method.
Plan, do, check, act (PDCA): We work according to the PDCA model to optimize our group-wide quality management.
Training & Qualification: Group-wide training for our employees.
Zero-error strategy: Our corporate culture and standards support error-free processes.

Stoelzle employees is working on a computer

Quality

Our quality standards

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