Maps of the ice mantle tracers toward the S68N outflow, with the CO low-velocity outflow map for reference. Top: CO, H₂CO, and CH₃OH moment-0 maps obtained in band 6 at 0.′′5 resolution. Circles show regions from which spectra were obtained for the analysis in Sect. 7.1. Bottom: CH₃CHO, HNCO, and CH₃CN moment-0 maps obtained in band 3 at 2.′′5 resolution. The emission is integrated from −10 to −1 km s⁻¹ and from 1 to 10 km s⁻¹ with respect to v_sys.