Paper barrier packaging preserves spices with recyclability

Food packaging for dried spices must block oxygen and moisture while remaining compatible with recycling streams. In this context, Mondi introduced a paper-based barrier packaging solution for Prymat built on its FunctionalBarrier Paper Ultimate material.

Replacing multilayer laminates in spice packaging
Dried spice products require strong protection against oxidation and humidity to prevent loss of aroma and clumping during storage and distribution. Conventional solutions typically rely on multilayer plastic or aluminium laminates that are difficult to recycle.

The new packaging uses re/cycle FunctionalBarrier Paper Ultimate containing at least 80% paper combined with a functional barrier coating. The material has been validated as recyclable in CEPI laboratory recyclability tests, allowing fibre recovery in existing paper streams and supporting circular economy packaging strategies.

Barrier performance targets typical spice storage conditions: oxygen transmission rate (OTR) below 0.5 cm³/m²·day and water vapour transmission rate (WVTR) below 0.5 g/m²·day, preventing flavour degradation and moisture absorption.

Emissions and material performance
Using Mondi’s product impact assessment methodology, the paper solution produces lower CO₂ emissions than conventional multilayer plastic or aluminium structures. Mechanical strength enables the pack to retain shape during handling and allows resealing by folding after opening.

High-quality printability supports retail presentation while maintaining barrier properties.

Integration into existing production lines
The packaging format remains compatible with Prymat’s existing filling systems, avoiding equipment replacement or major process modification. This allows deployment without capital investment while maintaining throughput.

The development followed trials evaluating barrier performance and machinability under real processing conditions.

Practical implications for the food packaging chain
By combining barrier coatings with fibre-based substrates, the packaging provides moisture and oxygen protection required for spice shelf life while remaining recyclable in standard paper streams. The approach demonstrates how material substitution can address both product preservation and sustainability targets within the food packaging segment of the digital supply chain.

www.mondigroup.com