- The salad lunch box uses food grade safe material which is safe to human health. The lid of salad lunch container is equipped with tight locks sealing up tighter than those with rubber rim. 3 compartments can separate salad, snacks, fruits and other food. There is a sauce container at the middle of to-go salad container for storing salad dressings, sauce, and other seasoning. The size is convenient to carry for work, picnic, travel.