What is the best material for food packaging that is both safe and environmentally friendly?

The best material for food packaging that is both safe and environmentally friendly is biodegradable or compostable material. Materials such as PLA (Polylactic Acid), made from renewable resources like corn starch, and paper-based packaging are preferred. They are non-toxic, compostable, and reduce plastic waste. Additionally, materials like glass and metal can be recycled and are also considered safe for food contact. However, it's crucial to consider the entire lifecycle of the packaging to ensure it's truly sustainable.