Hi all been using these a while now, not sure if available Aust wide.
They come in different flavours latte, cupachino, Mushroom soup and hot chocolate.
All you do is press the bottom shake for 20 seconds then let stand for a minute or to and you have a nice hot drink.
Great if you don't have stove or wood is wet, @ only $2.50 a can I'll be throwing a few in my tucker box. I brought this from the reject shop. but check HOT CAN on line for nearest stockist, seems to be Vic regional , Handy for a quick coffee hit,