(Cycles) Beer foam bubbles

Hi,

I need help!

How can i create procedurally a bear foam in cycles? I have been trying create this with voronoi but without any good success. :frowning:

Thanks for the link, but i know this one. Andrew teaches a very simplistic way to create a foam, but i would like to have more like this one.

https://bitchmakescake.files.wordpress.com/2012/06/foam.jpg

Sadly, this .blend β€œrequires an immersion blender” while ours is not :smiley:

Not quite a beer foam too, i guess. Google search β€˜beer foam site:blenderartists.org’ shows a bunch of tries, including attempts using particles. Could give some ideas.