Overview of the mass spectra of VUV processed methanol ice acquired at different temperatures, using 70 eV electrons as an ionisation source. The fluence level is noted in brackets. Low fluence corresponds to (1.2 ± 0.4) × 10¹⁷ photons cm^-2 and high fluence to (5 ± 2) × 10¹⁷ photons cm^-2 (estimated). The high-fluence experiment follows a different experimental procedure: simultaneous deposition (~240 ML) and photolysis (4 h).