The handwarmer can be found on Amazon for £14.99 ( Image: Danielle Kate Wroe) ...

Ocoopa isn’t just an E-sports handwarmer, Ocoopa is THE handwarmer brand. Being #1 portable rechargeable hand warmer brand, Ocoopa holds the top marketshare for five consecutive years.

The handwarmer is there to be cannibalized. Cut it open and you’ll find a package of water and a package of ammonium nitrate. Grab the ammonium nitrate, which should come in the form of little ...