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Flow control on standard E61? Maybe!

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  • greenman
    replied
    I have recently installed the flow control on my Profitec, early days but I have been experimenting with long blacks, I have been using 8grams of Nicaraguan natural filter roast and my TRG espresso blend for remainder of 21.8g dose, I have been pre-infusing then going to 9bar and then emulating a lever style ramp down, the long blacks after cooling down have been super clean and taste great really showcasing the fruitiness of the natural with the richness of the blend.

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  • steve7
    started a topic Flow control on standard E61? Maybe!

    Flow control on standard E61? Maybe!

    I've been looking at a flow control addition to my ECM but have baulked because it would mean giving up my grouphead thermometer. (Coffee Sensor Pro). The price at $400 is also a bit of a blockage.

    I assume there is no elegant way to have both the thermometer and the pressure gauge?

    As an alternative I have been playing with the brew valve lever. I know with the E61 you get some preinfusion flow and pressure ramp-up as the chamber fills, but I have been trying returning the lever to the halfway mark when my shot hits about 20gms and then shutting all the way down when I hit 30gms.

    My thinking is this turns off the pump, but keeps pressure in the coffee chamber. (The cam has closed the brew valve, opened the preinfusion valve, but has not opened the drain valve.) So no more water is entering the chamber but the existing pressure still forces some water through the puck as it scales down. So I think I am getting a gradual ramp-down of pressure and flow, which I gather is roughly what you are looking for in a flow control valve.

    It is probably all in the mind, but it seems to taste better.

    How deluded am I?
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