There are a variety of certifications and norms that can be used to document adherence to hygiene standards. The STI Group elected to undertake a stepped implementation of DIN EN 15593:2008.

The BRC, the British Retail Consortium, promotes the interests of its members in dealings with governments, agencies and EU institutions. A joint effort between the Institute of Packaging (IoP) and several retail chains led to the definition of binding standards for suppliers of packaging materials for primary food packaging. The BRC IoP standard corresponds to a de facto norm that has had an impact beyond just Great Britain.

The DIN EN 15593 was recently released as an alternative standard for good hygienic practices for the packaging industry. Unlike the BRC IoP, the DIN EN 15593 was not proposed by an interest group, but rather by a broadly accepted institution. Both the DIN EN 15593 and the BRC IoP establish mandatory requirements for all areas of the packaging industry, although the DIN standard leaves more free room for implementation, akin to a DIN EN ISO 9001.

The STI Group has oriented its processes to DIN standard, since it can also be integrated into a matrix organisation. The individual components required to fulfil the requirements are currently in implementation stage.

ISO 22000:2005 describes a management system that defines organisational requirements for retail chains. The respective organisations within the food supply chain are obligated here to prove that they are capable of keeping effective control of health risks arising during production or any respective processing step and that the foodstuffs they are releasing into circulation are secure at the time of human consumption.

The norm is fundamentally applicable for all areas of the food chain, as well as for the production of animal feed and other materials (such as packaging, cleaners, storage and distribution of foodstuffs) that come into contact with foods. It also applies extensively to foodstuff makers, vintners, filling plants, farmers, manufacturers of additives, retailers, catering and restaurant operators, cafeterias as well as producers and suppliers of cleaning, transportation, storage and distribution products for the food industry.

The factory in Hungary is certified based on this norm, but is currently also reviewing a switchover to DIN EN 15593:2008, since that norm better reflects the future hygienic standards of the STI Group.