Question about Tefal 45-in-1 multicooker rice cooker (RK8121)

from the amazon UK site, it says the pot is aluminum with 5 layers of coating. (https://www.amazon.co.uk/Tefal-Mult...)

The Swiss contact point for these appliances could not give me any information about what material the steamer insert is made of, even after an extended wait, I am very sorry.