This dataset contains the raw data of the chemical analysis described in the associated publication, namely the mass spectral data of the plastic extracts and migrates analyzed using UPLC-QTOF-DDA. For experimental details on the nontarget analysis, see the Supporting Information of the publication. The data uploaded here are the Waters .raw files converted to the open mzML format which can be assessed using text editors. Each file contains the individual mass spectral data of a sample. They are labelled with the sample name corresponding to the samples described in Table 1 of the publication. The sample names denote the polymer type of the plastic product. PB refers to the procedural blanks, MeOH refers to the methanol used as a solvent, EtOH10 (10% ethanol), EtOH50 (50% ethanol) and H2O refer to the food simulants used for the migration. POS and NEG indicate the ionization mode. BeforeSPE refers to samples analyzed prior to the solid phase extraction.