The New Wood competition 2025: Uncoated wood-fibre packaging is greaseproof without PFAS compounds
Uusi puu – The New Wood Project shows what wood can do. The project promotes wood-based innovations and provides information about them.
Metsä Spring uses a new type of technology to produce the Muoto Twin food packagings, which contain no harmful PFAS compounds, yet are highly grease- and waterproof.
Plastics have for long been the standard choice for manufacturing food packagings, but due to their environmental impact and the tightening EU legislation, other choices are being increasingly sought after. Metsä Spring strives to meet the new requirements with its new, fibre-based Muoto® Twin Uncoated Fibre product family.
The Muoto Twin products are made of renewable Nordic wood fibre with a new type of technology. Thanks to this, the material is grease- and waterproof without the use of harmful PFAS compounds, which have been included in many grease-repellent coatings for paperboard food packagings.
The products have a multi-layer structure that is lightweight and sturdy. They can be used as takeaway packagings and single-use plates and cups, for example.
The material is formed into the products by pressing, without the use of seams or joins, which makes them sturdy and hygienic. They are both recyclable and biodegradable. Their carbon footprint is, according to the manufacturer, clearly smaller than that of packagings made of such materials as bagasse, based on sugar cane, or PET plastic.
The production process is based on resource efficiency and advanced automation. The process can be integrated with a bioproduct factory without intermediate processing. According to Metsä Spring, the raw materials are derived from responsibly grown forests, and the supply chain is traceable.
Muoto is a development project by Metsä Spring, aiming at stepwise scaleable domestic production.
Forest.fi and New Wood are initiatives of the Finnish Forest Association.