Hi @kemmyb. Thank you for visiting my post :)
As you know that to have a cup of “sareng coffee”, it takes a lot of thing to prepare. That’s why, it would be a special one.

I think it doesn’t increase the caffein, but they use robusta coffee that contains double percentages of caffeine than Arabica. And robusta is much bitter than arabica. However, arabica is more acid/sour than robusta.

Yeah, coffee and timphan is perfect dish in a coffee shop here. Unfortunately, not every coffee shop serve timphan. 😁

Haha. Yep, our mothers is the best chef in the world.