What does nutella add to the Coke+Mentos reaction? Inspired by this question on SFF.SE.

The Diet Coke + Mentos experiment has been a popular one for a while now, and I've read a little bit about the science behind it.

I recently discovered this video, where an Italian man adds Nutella to the mix1, to his great excitement.

However, I'm not clear on why he did this; I couldn't see a significant difference in the reaction (although my view was somewhat obscured by the condom). What does the Nutella add to this reaction?



1 Do not watch this video in a public place without headphones on (or the sound turned way down); he gets very, very excited when his abomination experiment (literally) blows up in his face
Nutella was used just to protect cola from incidental reaction with Mentos. And it makes more effective insertion - all mentos tabs are inside at the same time.

The reaction is completely the same with simple Mentos. (this video also is quite noisy)

This is not chemical reaction, is carbon dioxide evaporation.