Today is #coffeeday ☕Tiger-skin crema, stable foam, reduced bitterness … espresso’s sensory magic comes from physical and chemical phenomena, not just brewing skill.😊 Relax with a coffee while getting to know your coffee better🌱🔬 #EspressoScience
https://doi.org/10.1002/chemv.201700092
Espresso Crema - ChemistryViews

Why does an espresso need a crema and what should it look like?

ChemistryViews