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Thread: Breville BRES870XL lack of pressure

  1. #1
    Junior Member
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    Breville BRES870XL lack of pressure

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    This machine needs to find resistance in the coffee. If the portafilter is not fully topped and strongly compressed the pressure will remain low.
    It's best to fill it up to 3/4s and compress it, then top it high and compress again to the point that will require pressure again to place it in the lock.

    Also grind the beans fine, two or three measures from the maximum.

    I was having problems for months with the needle not moving at all or barely until almost accidentally I found the right amount of coffee and resistance required. Now the needle moves more than half of the arch. This machine likes resistance.

  2. #2
    Senior Member level3ninja's Avatar
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    That sounds like massively overdosing to compensate for not being able to grind fine enough. Better advice would be to grind finer or shim the grinder if needed and dose the recommended amount into the basket.

  3. #3
    Senior Member
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    Quote Originally Posted by aranala View Post
    This machine needs to find resistance in the coffee.
    That is how ALL espresso machines work. Pressure is the result of the resistance to flow (whether you have a pump machine or lever machine).

  4. #4
    Senior Member
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    Quote Originally Posted by aranala View Post
    It's best to fill it up to 3/4s and compress it, then top it high and compress again to the point that will require pressure again
    You can also jiggle the portafilter as filling to achieve the same result.



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