In this study, a survey has been carried out to analyse the purchase choice regarding several packaging options of four basic foods (water, milk, bread and meat). We conducted a segmentation by age to analyse whether the purchasing behaviour changes depending on this variable, and whether it is related to environmental attitudes measured on the New Ecological Paradigm (NEP) scale and to recycling behaviour. Among the results we found that, although young people seem to be slightly more environmentally aware, this does not translate into more sustainable purchases.