1.Is there a rubber seal ring on the container cover?
No sealing ring
2.How many degrees can the lunch box be heated?
3.How long does the lunch box need to be heated?
4.How many dishes can be packed in the lunch box? What is its capacity?
Rice box 0.66l /Dish box 0.45l
5.Can you remove the small lunch box and reheat it in another one?
Can not be