The food thermos features a durable, 100% steel double-shell. The extra wide opening allows for easy use and cleaning. The lid can be used as a compact dish. The thermos offers unbeatable thermal insulation by ensuring that your food stays hot for up to 9 hours or cold for up to 12 hours. The vacuum will retain its integrity for years to come. The interior is electropolished (EP), which reduces retention of flavors or odors. The cap is made from BPA-free (Bisphenol A) material. Volume 710 ml.