During the XVIII International Conference on Environmental Ergonomics in Amsterdam, Dr Owen Jeffries (Newcastle University, UK) and Dr Martin Barwood (Leeds Trinity University, UK) chaired a symposium on Thursday 11th July 2019 entitled: “The application of menthol in sport, exercise and occupational settings: to apply, ingest or discard?”. Dr Russ Best (Waikato Institute of Technology, New Zealand) and Dr Jason Gillis (Salem State University, Massachusetts, USA) accompanied both Martin and Owen presenting recent findings and exploring unpublished observations expanding our understanding of the use of menthol in hot environments and posing future questions in what was a fascinating discussion.