The packaging displays a traffic light system of how ecologically sustainable the product is and gives an overall grade to provide an at-a-glance score.
Several companies, including Mash Direct, have signed up to the pilot scheme.
The scores will initially be shown on five Mash Direct SKUs: Mashed Potato, Champ, Carrots & Parsnips, Mashed Turnip/Swede, and Colcannon/Bubble & Squeak.
The brand aims to roll out the packaging to other products next year.
Mash Direct chief executive Jack Hamilton said: “Introducing the Foundation Earth scoring system packaging is a hugely important step in our commitment to providing full transparency to our customers and increasing our brand’s sustainability.”