12 Mar 2020 --- British multinational groceries and general merchandise retailer Tesco has released its Packaging Preferred Materials & Formats Guidelines 2020 with one notable absentee from its preferred materials list: compostable and biodegradable packaging. Tesco highlights “very limited collection in the UK for compostable packaging” as the rationale for this decision. The supermarket giant’s preferred packaging includes easily-separable cardboard with plastics with a maximum 15 percent plastic content and mono lidding film matched to tray material when permanently attached.