We came across this video from Japan the other week and could not believe what we were looking at. It fascinates us both scientifically (why does it happen?) and gastronomically (how could you eat it?). Apparently it is caused by a voltage reaction between the high salt content in the sauce and the nerves in the tentacles to cause the effect you see in the video.

Please understand that the squid has been served without its head so you are not looking at anything that is alive.

Thanks to Christian Ibrahim, The Daily Mail and nhanphantrung for the video.