Assessing the Usability of a Virtual Reality Training Tool for Coffee Handling and Hygiene: The SafeBrew VR Ex-perience

Abstract

Effective coffee handling and hygiene practices are paramount for quality as-surance and food safety in the coffee industry, yet traditional training meth-ods often fall short in providing hands-on, consistent learning experiences. This paper presents a usability assessment of a novel Virtual Reality (VR) training tool designed to teach coffee handling and hygiene skills. We con-ducted a mixed-methods usability study with [Number] participants, utiliz-ing a combination of quantitative metrics, including the System Usability Scale (SUS) and User Experience Questionnaire (UEQ), and qualitative data derived from post-test interviews and think-aloud protocols. Participants en-gaged in realistic VR scenarios covering tasks such as coffee brewing, milk steaming, and counter cleaning. Our findings reveal [summarize key positive aspects, e.g., high levels of immersion and perceived effectiveness] but also highlight specific usability challenges, including [summarize key challenges, e.g., difficulties with virtual object manipulation and navigation]. Based on these insights, the paper provides concrete recommendations for iterative de-sign improvements to enhance the tool's learnability, efficiency, and overall user satisfaction. This study contributes to the growing body of literature on VR in vocational training by offering empirical evidence on the usability of immersive tools in a specialized industry, guiding future development to-wards more effective and user-friendly VR learning solutions for critical practical skills.