The disposable lunch box made of PP plastic is non-toxic, tasteless and odorless. PP is relatively soft. Generally, the service temperature of PP is - 6 ℃ to + 120 ℃, so it is especially suitable for holding hot food. It can be heated in microwave oven or even cooked in steam cabinet. The service temperature of modified PP can be controlled from - 18 ℃ to + 110 ℃, It can also be put into the refrigerator for refrigeration.