Canned tuna lamp

The official twitter account of the Tokyo Metropolitan Police Department of disaster prevention division has introduced the “Lamp using the canned tuna oil” as the familiar material application technique.

This lamp glows by making a hole in the tuna can with its contents, inserting the wick, and lighting the wick with fire.

Cotton rope seems to be better for the wick, and tissue can also be substituted.
The lamp continues to glow for 2 hours, and of course the contents can be eaten.

It is useful as a lamp, and the contents can be eaten.
I think this can be preserved as one of the food emergencies during the disaster in Japan where there are lot of disasters such as earthquake and tsunami.