Is the plastic tray safe to cook food in, specifically in a microwave? 18 April 2024 10:10 Updated Yes, the trays we use are BPA-free and have been tested to ensure they are safe. Related articles Are COOK plastic trays food safe? Are your COOK trays suitable for an air fryer? Can I still eat my COOK meal if the tray is cracked or broken? Are COOK meals ultra-processed? Can I still eat my COOK meal if the film has come off?