![If the metal is tapered before rolling a whirlpool effect can be created](https://www.monstersandcritics.com/wp-content/uploads/2017/07/jelly-roll.jpg)
This week on Forged in Fire, the masters compete against their own apprentices using the jelly-roll technique.
The task this week is to make a cleaver utilizing the method, which involves taking seven to 13 layers of steel and then flattening them out into a strip.
![Jelly-roll technique example Red-hot steel being rolled up](https://i0.wp.com/www.monstersandcritics.com/wp-content/uploads/2017/07/jelly-roll-steel.jpg?resize=773.5%2C456&quality=20&ssl=1)
![Steel 'jelly-roll' Red-hot metal rolled up in a 'jelly-roll'](https://i0.wp.com/www.monstersandcritics.com/wp-content/uploads/2017/07/jelly-roll.jpg?resize=773.5%2C456&quality=20&ssl=1)
This is later heated up and rolled into a jelly roll shape, before being welded together with pressure.
This results in some stunning patterns on the metal and is a technique often seen in Damascus steel and decorative weapons.
![The end result, ready for use](https://i0.wp.com/www.monstersandcritics.com/wp-content/uploads/2017/07/jelly-2.jpg?resize=773.5%2C456&quality=20&ssl=1)
The finalist this week will be tasked with forging a Congolese axe known as a Nzappa Zap.
You can see demos of the jelly-roll technique by Big Dog Forge and Ed Caffrey in the YouTube videos below.
https://www.youtube.com/watch?v=2k7KjLyD9so
Forged in Fire airs Tuesdays at 9/8c on History Channel.