ComputerGeek Senior Member Joined: 13 Mar 2004 Posts: 5 Location: Northern Virginia Expertise: I like coffee
Espresso: Spidem Trevi Combi Plus Grinder: Spidem Trevi Combi Plus
Posted Tue Mar 16, 2004, 1:01pm Subject: Is Tamping Needed for a Pressurized Filter
I am using a Spidem Trevi Combi Plus which has the pressurized portafilter system. Near as I can tell, it delivers a perfect shot almost every time, no bitterness with good crema. I have a tamper, but I just use that to knock the coffee into the filter and smooth out the top for an even flow through the puck.
Should I be applying pressure to the coffee grounds? Should I NOT be tamping a pressurized filter?
Whodat Senior Member Joined: 21 Jan 2004 Posts: 131 Location: Boston Expertise: I like coffee
Espresso: Bezzera BZ02S, La Peppina Grinder: Isomac Gran Macinino
Posted Sun Mar 21, 2004, 11:33am Subject: Re: Is Tamping Needed for a Pressurized Filter
My experience with a pressurized filter basket is that the need for tamping varies a lot with the particular beans & grind being used. I don't (yet) have a grinder so I've been using pre-ground. With Illy medium roast espresso grind, anything more than a light pat would choke the machine or create an undrinkable dogshot. The Illy dark could take a bit more tamping, LaVazza even more.
My current favorite is Peet's Major Dickerson's blend, ground to a "5" on their commercial machine. This makes some really good espresso, but requires some fairly heavy tamping (though I doubt I'm up to the 30 lb. that everyone talks about).
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