The 42 Degrees Company Self Heating Coffee 205ml

+42º is a range of a premium hot beverages delivered in a self heating patented can. Once the can has been activated, the self-heating can technology will heat up the beverage without the need of any electrical device, which means that you can have a hot drink no matter where you are be it on hikes, camping, golfing, sea swimming, ANYTIME, ANYWHERE!

Self Heating Coffee instructions

https://www.youtube.com/watch?v=bat7MGVE0Ss&feature=emb_title