Purpose – Craft brewers in the USA have long sought to improve the efficiency of beer production to achieve their primary aims of improving the product and increasing profit margins. More recently, however, there has been a move toward the adoption of more sustainable production techniques aimed at reducing the environmental impact of the brewing process itself. This study aims to investigate the factors that drive engagement with environmental practices among US craft brewery owners. Design/methodology/approach – The present study uses an exploratory sequential mixed methods design where, first, a qualitative thematic analysis was conducted via semi-structured in-depth interviews with 31 craft brewers from across the USA. Second, a quantitative online survey was distributed to craft brewers nationwide, and 237 valid responses were collected to rank the preidentified motivational factors. Findings – The findings of the present study are in alignment with those of previous studies conducted in a broader business context. This study contributes to an understanding of the factors driving environmental engagement, as well as their relative significance to craft brewers, which is critical to increasing the ability to target financial and physical resources and make the brewing process more sustainable and environmentally friendly. Research limitations/implications – The study has theoretical and practical implications for craft breweries, policymakers and academics. From the perspective of policy, there is limited work exploring this topic in the specific context of craft brewing. This study, thus, contributes to an understanding of the factors driving environmental engagement, as well as their relative significance to craft brewers – which is critical to increasing the ability to target resources, both financial and material, and make the brewing process more sustainable and environmentally friendly. Originality/value – Identifying exactly what it is that guides the decision-making processes of craft brewery owners, in regard to the adoption of new or improved environmental practices, has several advantages. First, it serves as a guide to help breweries adapt to the evolving needs of a progressive society; second, it assists government and policymakers in formulating effective and relevant legislation; and third, it helps consumers to better understand their role and position in business processes and decision-making.