How much microplastic truly ends up in the seafood on our plates? The answer varies significantly because there are no standardised analytical procedures in food monitoring to quantify the amount of tiny plastic particles in fishery products. Consequently, it is difficult to compare the results of various studies, and it is often unclear how reliable the provided data is. Scientists at the Max Rubner-Institut have adapted methods deriving from environmental analysis to make them suitable for quantifying microplastic in seafood. To do so, they had to overcome a number of methodological hurdles.