The global food system is a major contributor to environmental unsustainability partly due to the immense amount of energy that is consumed in product life cycles. Our endeavour with the present study was to gain insights about how people experience and reflect upon energy use embedded in the life cycle of grocery products. Based on a two-month mixed-methods study that encompassed interviews, technology probe deployment, and continuous surveys with eight participants, we identified characteristics of choices for high and low preference foods on sustainability; impacts of various abstractions of information; and challenges and opportunities for digital technology in grocery shopping. We discuss the findings in relation to the notion of value plurality and present design implications for food assistance systems in Sustainable HCI.