If you are very particular about the perfect espresso, you cannot ignore Barista Doppio Shot Glass/ Single spout, this Italian measuring glass. Simply fill the appropriate amount of ground coffee into the portafilter and "draw" the appropriate amount of espresso.
Barista Doppio Shot Glass/ Single spout is a high quality measuring glass designed for fine tuning espresso extractions for home espresso lovers and professional baristas alike. It has measurement lines with ounce and milliliter.