Paper and packaging group Smurfit Kappa has developed a new packaging solution for fast food, which it said is "entirely sustainable".

The company created the packaging for Lithuanian fast-food restaurant Fresh Post, following a collaboration with independent packaging consultant Juozas Baranauskas.

Smurfit Kappa said the new packaging is part of the company's portfolio of products which offer sustainable alternatives to existing single-use plastic solutions.

The new Fresh Post food box is made from Smurfit Kappa’s Twin Kraft Solid Board, which is a paper-based mono-material specifically designed for food packaging.

By integrating the company’s MB12 technology, it said the recyclable material can adsorb mineral oils, keeping food safe whilst simultaneously protecting smell and taste.

The company said the packaging is created in an energy-efficient manner with "significant" reduction in both electricity and water compared to the previous solution.

The complete lifecycle of the packaging, including the materials’ origins, supply chain and how it is collected at the end of life and recycled to make new packaging, is shown on the Fresh Post website - designed to give consumers full transparency.

"Today we have everything we wanted - responsibility from suppliers and manufacturers, and complete traceability of the packaging down to the smallest detail," said Inga Tribuišienė, Founder and CEO of Fresh Post.