Writer

Frederik Kiel

Co-founder of Repax.io

frederik kiel

Latest writing

Recent posts by Frederik

EPR software · 19 min

The best Dutch EPR software in 2026

The Netherlands lets your first 50,000 kilograms of packaging go levy-free, then asks three separate bodies for the numbers behind it. Here are the six EPR tools that genuinely cover the Dutch workload, ranked.

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ISO standards · 11 min

How ISO 18603 defines reusable packaging

Calling packaging reusable is easy. ISO 18603 is the standard that decides whether the label holds, and it looks past the packaging itself to the system that is supposed to bring it back.

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ISO standards · 12 min

ISO/TR 17098 and the substances that impede packaging recycling

A pack can be made of a recyclable material and still be turned away at the sorting plant. ISO/TR 17098 is the 2013 ISO technical report that lists what causes that, material by material, so a designer can catch it before the pack ships.

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EPR essentials · 12 min

How to check if EPR applies to your business

Extended producer responsibility does not apply to a business as a whole. It applies product by product, country by country and stream by stream, so here is the six-step check that gives you a written answer for every one of them.

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EPR software · 10 min

The best UK Plastic Packaging Tax software in 2026

The Plastic Packaging Tax is a data problem before it is a tax bill. Here are the five best tools for capturing packaging data, tracking recycled content and getting to a return you can file, ranked and compared for 2026.

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EPR software · 14 min

Repax vs AlgoREP compared for EPR software in 2026

AlgoREP calculates French eco-contributions in seconds across all 19 national schemes, and it is genuinely hard to beat if France is your only market. Repax is the better overall choice the moment you report beyond France or need a self-serve EU Declaration of Conformity, because you own one product record and reuse it across markets.

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