Quick Mill Flow Control DeviceQuick Mill Flow Control Device (E61 Group Head) Take full control of your espresso extractions with the Quick Mill Flow Control Device, designed to enhance any Quick Mill machine with an E61 group headincluding the Carola, Rubina, Andreja, and Vetrano models. Perfect for advanced users looking to manually profile espresso shots, this tool allows you to adjust brew pressure in real time, from 0 bar to full pump pressure (~9 bar). It's ideal for
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