Bread, Ice Cream Is A Foam. Yes, Really.

It is, because foam, essentially, is air bubbles trapped in different phases. The foam on top of a beer—those are air bubbles surrounded by liquid. When you churn an ice cream mix, you are driving air bubbles into it. And then the mix freezes and you end up with a bunch of bubbles inside a solid matrix. The same is true of bread.

Source: What is Gluten?

It’s a slice of food science, but it neglects to mention that there are gluten free breads – sourdough, focaccia…