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Double walled porta filter basket? Why?
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Discussions > Espresso > Q and A > Double walled...  
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telepilot
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Joined: 7 Jan 2010
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Posted Sun May 26, 2013, 7:52am
Subject: Double walled porta filter basket? Why?
 

My breville machine comes with both single and double-walled porta filter baskets. It says the double walled baskets are for pre-ground coffee. How the hell does the machine know if the beans were ground before I brought them home or not? Maybe a coffegeek can enlighten me here. Thanks.
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emradguy
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Posted Sun May 26, 2013, 8:02am
Subject: Re: Double walled porta filter basket? Why?
 

the machine won't know the difference, but you will.

the "double walled" ones are commonly referred to as pressurized here.  those are used to simulate a "good" extraction using stale preground coffee, giving you something that vaguely resembles crema.

do yourself a favor and stuff them away in a drawer or the original box the machine came in, and never take them out again.  

Now, go get yourself a good espresso-capable grinder and fresh (roasted within the past 2 weeks) whole beans

.

 
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frcn
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Posted Sun May 26, 2013, 8:03am
Subject: Re: Double walled porta filter basket? Why?
 

It has a crema-enhancer between the two layers at the bottom that creates a resistance to the flow of water and makes fake crema. I would assume that the instructions tell you to not tamp or to tamp very lightly when using this basket.

 
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telepilot
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Posted Sun May 26, 2013, 10:38am
Subject: Re: Double walled porta filter basket? Why?
 

I've been grinding fresh beans and using the single walled filter and it has worked pretty well. My new beans order got shipped to the wrong address and I can't find them now (but that's another story) so I went to the store to get some Illy pre-ground to hold me over. Thought I'd try the "pressurized" filter with it. Results? OK I guess. Better than gas station coffee.
And the instructions didn't say anything about tamping. Anyway, thanks.
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emradguy
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emradguy
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Posted Sun May 26, 2013, 10:57am
Subject: Re: Double walled porta filter basket? Why?
 

so you're on the right track...glad to hear it!

 
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calblacksmith
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Posted Thu May 30, 2013, 5:27am
Subject: Re: Double walled porta filter basket? Why?
 

telepilot Said:

I went to the store to get some Illy pre-ground to hold me over. Thought I'd try the "pressurized" filter with it. Results? OK I guess. Better than gas station coffee.

Posted May 26, 2013 link

I think this is more of a comment on the gas stations near you than a comment on Illy.

 
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