5. PETG

PETG (polyethylene terephthalate glycol) is a tough and flexible material, resistant to solvents. In finished products, it's used as a replacement for ABS. It's considered safe for health and is suitable for applications involving contact with food. During printing, stainless steel nozzles are typically used to avoid releasing toxic substances into the material when melted. The material can withstand temperatures up to 80°C. A drawback could be an imperfect surface finish.