One important finding is also the plastic nanoparticles found in
the acidic simulant, which were not expected. They suggest that
these nanoparticles are used for a better dispersion and stability
of the nanosilver particles during the manufacture of the plastic
container. Thus their toxicity should be also studied, as the results
show that the intake of nanoplastics in the diet, especially when
the containers are used for microwave heating, is a real issue.