Macphie's ready-to-use sauce and dessert cartons are now made up of 86% renewable material, using Tetra Pak's new-to-market plant-based packaging.
Each carton uses 2.2 times less fossil plastic than those previously used and the one-litre and 500ml packs now feature more prominent on-pack recycling instructions to encourage appropriate disposal and help customers meet critical recycling targets.
Macphie chief executive Andy Stapley said: "The people and places around us matter to Macphie and we're continually building sustainability into our business, weaving in better ways of doing things as we go.
"As a certified B Corporation, we've made a commitment to using our business as a force for good. We have made good headway in reducing plastic and despite the challenges the last year has thrown our industry, it's important we press on with our environmental agenda."