Bialetti Brikka Espresso crema Self-construction foam system Englisch

Here still the link for the VALVE in the my Bialetti cafe. Video Englisch. https://www.youtube.com/watch?v=lXvGnqAA52U Self-construction coffee foam system. I used a non-return valve on my Bialetti Original to improve the coffee foam. The non-return valve regulates the counterpressure to create a perfect foam. Self-construction foam system. Bialetti Brikka - How to prepare perfect espresso crema. Must see.