I have just picked up a delonghi eco 310 it comes with a built in tamper but the basket is pressurised do I need to still tamp the grinds some say yes and some say no as I'm new to all this I'm not sure if I'm getting a sour shot or not due to tamping. Also I want to know if I can buy a normal non-pressurised basket and use that in the portafilter that comes with the machine.
If anyone requires pics let me know
But thanks for any advice
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