Ive been using a naked portafilter for about 10 days now. Its interesting watching what happens under the filter basket. Typically the extraction starts out dark and thin around the perimeter, then the circle narrows and lightens in colour as it heads towards the centre. Most of the time once it reaches the centre I end up with a thick single stream which consists of a mixture of light and dark espresso but sometimes there are 2 or 3 streams for a brief moment before they join. I assume the first scenario is what youre aiming for? :-?. Can anyone provide a bit more info on what should happen if you have dosed and tamped correctly, and recommend a good source with additional information and photos?
Is it just me or do you find you end up with more crema?
Is it just me or do you find you end up with more crema?


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