When coffee is roasted, it produces carbon dioxide as a byproduct of the roasting process. My coffee is thin and weak with a fast-dissipating crema.įirst check the roast date of your coffee. Same strength espresso, just different amounts of it. So our 22g dose should have a 44g beverage weight, whilst a 19g dose would only have a 38g beverage weight. We like espresso that follows a brew ratio of 1 part coffee to 2 parts water (i.e. The size dose that is suitable for your portafilter basket will dictate what yield of espresso will be most appropriate in your brew recipe. Ok, so the ideal dose range for my basked is not 22g. But regardless, try increasing your dose to mitigate this issue. This is far less of an issue than people think. When you brew the shot, the coffee expands with the addition of water, but the headroom between the tamped coffee in the portafilter and the group head shower screen is too great and the coffee never swells to an even shape, resulting in wet mush in place of the puck.
With this issue, the dose is too small for the basket. The other extreme of this problem is ‘the sloppy coffee puck’. Avoid this by dropping your dose a couple of grams and test the results. The coffee also runs through much faster which in turn leads to a bitter-tasting brew. Overfilled baskets are prone to causing channels and cause group heads to become dirtier. The coffee needs enough room to expand without coming in to contact with the shower screen. Remember that as we add water to coffee in the portafilter, it expands. If it does, then you’ve overfilled your basket. Once you’ve finished brewing a shot of coffee, the removed puck shouldn’t resemble a hard brick. You want your dose to be low enough that if you inserted the portafilter into the group head and removed it straight away, there would be no impression of the shower screen on the surface of the tamped coffee. Many stock baskets are designed to hold 19 or 20g as standard, but baskets do come in a variety of sizes and you’re best off experimenting with a variety of doses to find what’s appropriate for your basket. This all translates to a better tasting espresso.īut I have 18g / 20g baskets? Will they work? These baskets are built to a tighter design standard, the holes in the bottom of these baskets are cut by lasers (so they are more evenly spaced) and the baskets are a more consistent size. We recommend upgrading to a set of VST or Pullman Precision Baskets. Upgrading to precision baskets is one of the best things you can do for your espresso, dollar for dollar.
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