Have you heard about “crispy” Diet Coke? I dismissed this TikTok driven trend until my daughter mentioned it the other day.

As readers of this newsletter know, my adult son and daughter, ages 27 and 22, are an important window for me. What I see and hear from them has been valuable to my understanding of how young consumers digest media and consider brands. My kids and their friends are an antidote to the skepticism that can infect a 53-year-old brain.

It turns out my daughter and her friends are fans of “crispy” Diet Coke. And there is ritual around the drink. First, a Diet Coke goes into the freezer to get near the tipping point to ice. Next, ice is added to a reusable cup. On top of the ice goes a sachet of True Lime, which is a crystallized Lime powder (that I hadn’t heard of). The near-frozen Diet Coke is then poured over the ice and lime powder, creating the desired “crispy” effect. As my daughter explains: “It’s cold, carbonated, and super refreshing. Lime makes it even more crispy.” So young people do drink Diet Coke?

That wasn’t all she surprised me with. I’ve often...