We all know the experience of buying a nice bottle of Coke, pouring it into a cup and that MF just foams up like crazy and out of the cup.
Other times, when we pour it slowly with an angle, NO FOAM! crazy stuff.
Why is that? What makes it foam or not foam?
In addition, you can poke the foam and not only does it stop foaming more, but the foam also dissipates much faster! HOW?! WHY?!
Man if this happened during the middle ages someone would be burned for witchcraft.
In: 1
Essentially, when you pour along the side of a glass it will be a smoother transition. As opposed to hitting a flat surface at a direct impact which causes any 2 objects more likely to “break up”. Imagine going down a hill. You can either slide slowly down the side or you can jump off and hit the bottom. Which will give a more violent reaction?
As for touching the foam, the oil from your skin will break the bonds between certain things in the drink which cause foam. Aka oil will stop foam.
Im sure someone will give a better/more detailed/easier to understand version, but this is the basic idea of those things.
Latest Answers