In the latest mental_floss video, John Green follows up on the previous video from October that checked out common internet tips on how to make your life better. There are thirty tips tested, many of which are not worth your time to even try. Once you watch this video, you'll know which ones they are!
John just did it wrong..
which is why he hurt his hand.
You grasp the head with one hand opposite the core and slam it down on the surface.
The core will come right out.
Not an internet hack but a old,old, old kitchen hack.