**5. Conclusions**

This preliminary study firstly explored the effect of 360-degree immersive videos (based on VR headsets) on the sensory perception of chocolate products. Changing the context environments did not significant affect the hedonic ratings of chocolates. As compared to the traditional sensory booth, participants tended to have better engagement when they tasted chocolate products under both VR environments. Therefore, the data could be more ecologically valid as well as relevant to actual consumers' experience. In addition, the combination of dark chocolate and "virtual live concert" significantly affected consumers' hedonic responses and emotions into a positive and passionate direction. However, it is necessary to further match each chocolate type to a suitable consuming environment achieved by VR headsets, for more reliable and ecologically valid sensory responses.

**Supplementary Materials:** The following is available online at http://www.mdpi.com/2304-8158/9/4/515/s1, Table S1: Frequencies and significance of emotional terms based on Cochran's Q test.

**Author Contributions:** Conceptualization, D.D.T. and Y.K.; Methodology, D.D.T. and Y.K.; Formal analysis, Y.K.; investigation, Y.K., M.K., M.T., L.L., and D.X.; data curation, Y.K.; writing—original draft preparation, Y.K.; Writing—review and editing, Y.K., D.D.T., C.S., and R.H.; Supervision, D.D.T., C.S., and R.H.; Project administration, D.D.T.; Funding acquisition, D.D.T. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research was funded by Department of Wine, Food, and Molecular Biosciences, Faculty of Agriculture and Life Sciences, Lincoln University, New Zealand.

**Acknowledgments:** The authors would like to acknowledge all the subjects who participated in the sensory sessions.

**Conflicts of Interest:** The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.
