Will there be heavy metals exceeding the standard in steamed eggs with rice oil?

I won't. Whether the heavy metal exceeds the standard depends on the material of the inner container of the egg steamer you use. If the material does not exceed the standard, you can safely steam the eggs with rice oil. Heavy metals refer to metals with a density greater than 4.5gcm3, including gold, silver, copper, iron, mercury, lead and cadmium. Heavy metals accumulate in the human body to a certain extent, which will cause chronic poisoning.