Purpose Craft beer (CB) has gained prominence in the on-premise trade in the USA, which has become the world’s largest market for CB. Academically based research in the hospitality domain examining consumer behavioral psychology-based constructs in the situational consumption context of restaurants has, however, not kept pace with market reality. This study aims to examine how product involvement, knowledge, opinion leadership-seeking, risk perception, information processing and their interactions affect consumption of CB by consumers in the situational context of restaurants in the USA. Design/methodology/approach A national sample of 697 consumers from across the USA covering all categories of restaurants, including bars, pubs and brewpubs, informs the development of a structural equation model (SEM) of the motivational process to examine these effects. In the process, the authors validate latent construct measurement scales specific to CB consumption in the restaurant environment. Findings The results support main hypotheses confirming the existence of distinct motivational relationships, thus explicating the processes by which consumers’ CB product involvement, product knowledge, opinion leadership-seeking and risk perception are activated, influence one another and their subsequent information processing-related outcomes. The findings also confirm the unstable nature of the situational involvement construct, the stability of enduring involvement and the pivotal role of psychological risk on opinion leadership and opinion seeking as well as on other antecedents. As far as the interaction effects between the constructs are concerned, the authors confirm five mediating effects and one moderating effect. Practical implications Strategies should be developed by hospitality managers to identify consumers with higher enduring involvement with CB. Strategies should also be implemented that mitigate psychological, social and functional risk. The insights into the motivational relationships pertaining to CB consumption in restaurants should be integrated into drinks menu design and be considered in how service staff are trained. Originality/value This research provides nuanced insights from a motivational perspective of consumers in the situational context of restaurants from a holistic and consumer-centric behavioral psychology perspective providing deepened insights of focal behavioral psychology constructs and their roles in the hospitality domain.