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Ensuring product safety and legality via robust processes and rigorous control

The Zaanlandse Oil Refinery (ZOR) strives for safe, high-quality products. We use processes and quality systems that guarantee the safety, food safety, environmental impact, quality, authenticity and conformity of our products and services.

During production, important parameters are continuously measured.

The onsite laboratory is responsible for monitoring in-line samples, analyzing the final product and generating certificates of analysis. This means the highest standards are maintained.

Every product and process is tested according to the strict international regulations and the highest international standards such as the Food Safety Certification FSSC 22000.

To download a certificate, please select below:


Quality and Food Safety Certifications


Recognized by the Global Food Safety Initiative (GFSI), the FSSC 22000 Food Safety Management System provides a framework for effectively managing food safety responsibilities. Based on existing ISO Standards, it demonstrates that we have a robust Food Safety Management System in place.

ISO 9001

The ISO total quality manual is used as the framework for other systems and certifications, including the following international and Dutch standards.

International Organic certifications

EU Organic

The inspection body for organic production in the Netherlands. Relates to the manufacture of food products, wholesale trade, warehousing and support activities for transportation.

Skal number: 001055
Certificate number: 1963870


The United States Department of Agriculture (USDA) National Organic Program relates to Export, Administration, Filling, Import, Packing, Pressing and Refining.

Certificate number: CU 801110NOP-01.2023
Registration number: CU 801110


BioSuisse is the program for compliance with Swiss organic production standards.


Fair For Life

Certification standard for Fair Trade and responsible supply-chains



The RSPO has developed a set of environmental and social criteria which companies must comply with in order to produce Certified Sustainable Palm Oil (CSPO).

When they are properly applied, these criteria can help to minimize the negative impact of palm oil cultivation on the environment and communities in palm oil-producing regions.



Sourcing with Respect: UEBT defines practices that respect people and biodiversity in the way ingredients from biodiversity are grown, collected, researched, processed and commercialised.  The UEBT standard is used to independently check that these practices are systemically applied.


ISO 14001

ISO 14001

The ISO total quality manual is used as the framework for other systems and certifications, including the following international and Dutch standards.



"GMP" stands for Good Manufacturing Practices. "+" refers to the integration of Hazards Analysis and Critical Control Points (HACCP). The certification scheme of GMP+ International has two elements: Feed Safety Assurance(FSA), for safe feed and Feed Responsibility Assurance(FRA), for a sustainable work method.


Complies with the requirements of the RED and the certification systems ISCC EU (International Sustainability and Carbon Certification), which is approved by the European Commission.

Kosher & Halal

The Zaanlandse Olieraffinaderij is able to deliver Kosher and Halal products.


Kosher Certificate issued by the Orthodox Union.


Halal certificate issued by the Islamic Food Council of Europe.