Magnifica grinding way too much coffee per shot, common cause?

Thomas Martinez

Thomas Martinez

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May 5, 2026
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A few people has mentioned that the Magnifica models are known for overdosing on the grind settings. From what I understand, the usual fix is to adjust the grind to a finer setting (higher number on the dial), lower the strength of the coffee setting and use a single espresso or coffee instead of the double settings. Some say that if the grinder is particularly dirty, that could be contributing to the coffee being dose too heavily as the grounds tend to gum up when old and the burrs do not allow for even extraction of the beans.
I'm not sure what people's experiences have been with any of these fixes though. Does anyone have suggestions as to which is the best fix for the overdosing issue on the Magnifica coffee makers?


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grind size is the biggest lever by far. I went from setting 3 to setting 6 on my magnifica s and the overdose problem just vanished. Strength button barely moved the needle for me tbh
 
Double is definitely more than 2x single on mine. Weighed it out of curiosity, single was about 7g, double came out closer to 16-17g. Not huge but it adds up if you're already overdosing.
 
The real answer is that the Magnifica machines dose the amount of coffee by the run time of the grinder’s motor, not by the weight setting. Thus, if the beans is oilier or fresher, the grinder will take longer to extract the coffee and the motor will dose more coffee into the brew chamber. The same effect occurs with grind size and strength settings, since all of those factors impact the run time of the motor. Therefore, if you go to a finer grind, more coffee will be dosed because the motor will run for a shorter period of time (since the coffee will pass through the grinder more quickly), AND if you adjust the strength button, because the motor will run for shorter periods of time. That’s essentially why the solution is to either adjust the grinder to a coarse grind to allow for more coffee to pass through each second, OR to lower the strength setting to reduce the amount of time the motor will run.
 
Proud Peccary said:
The real answer is that the Magnifica machines dose the amount of coffee by the run time of the grinder’s motor, not by the weight setting. Thus, if the beans is oilier or fresher, the grinder will take longer to extract the coffee and the motor will dose more coffee into the bre…
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ok that actually makes sense, so its a flow rate thing not a packing thing
 
Quaint Quail said:
Has anyone tried just weighing the puck after a shot to confirm the dose? I know that it is supposed to be around 7g but I’ve never done this before.
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yeah i do this. Puck is wet so add maybe 1-1.5g for water weight. Mine reads 14g wet on a single which is way too much for a 7g target
 
Forbidden Plunger Babi said:
nah you're half right. Its both. Finer grind moves slower through the chute AND packs denser in the brew chamber. You cant separate the two
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You can separate them, the dose by weight is determined almost entirely by the time that the motor runs and the density of the coffee beans. The brew chamber on a magnifica isnt fully packed with coffee with any grind size.
 
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