This paper is a case study that describes and evaluates a virtual learning environment (VLE) with seasonal inexperienced workers (trainees). The VLE contains 3D and 2D scenarios of a modern winery that animates and simulates seven winemaking processes, based on the Chilean National Work Competency (WC) Standards. The aim of this study was to evaluate the WC of winemaking developed by trainees in this VLE. The WCs developed by trainees were verified in field by an expert in three different wineries. Furthermore, elements of WC such as traceability, job safety and hygiene were evaluated by surveys. The trainees displayed a positive performance when interacting with the hands-on real winery equipment after the training with VLE. The significance of this study is the analysis of a novel VLE based on a winery and a winemaking process that can become an efficient learning tool for developing work competences in trainees.