helsinkifinlandbased ahlstrom introduced a new moulding material, called naturemold, for the readymeals and other processed food market segments.  ahlstrom&rsquos moulding materials are an environmentally friendly alternative to moulds or trays made of plastic or aluminium, or trays produced with synthetic polymers such as pet polyester or pe polyethylene. the moulding materials are made from renewable sources, produced from fsc certified pulp and are biodegradable. it works in a broad range of temperatures from freezer to oven and microwave to table.