Posted Wed Aug 14, 2013, 1:24pm Subject: Pressurized portafilter- Tamp or no tamp?
I'm planning to buy the Delonghi EC702 Semi-Auto pump espresso machine. It comes with a built In tamper which means I tamp upwards. I planned to buy an external tamper (Espro calibrated tamper) Do I have to tamp espresso If I'm using a pressuzied portafilter? If so and I can use an external tamper, do I still need to use 30 pounds of pressure?
"You can't make good coffee, without good coffee" -Thecoffeenerd
NobbyR Senior Member Joined: 10 Jul 2011 Posts: 2,044 Location: Germany Expertise: I love coffee
Espresso: Poccino Opus One, Ariete Grinder: Eureka Mignon Istantaneo Vac Pot: N/A Drip: Melitta Linea Unica de Luxe Roaster: N/A
Posted Thu Aug 15, 2013, 12:17am Subject: Re: Pressurized portafilter- Tamp or no tamp?
It doesn't really matter, because a pressurized portafilter is for people who don't want to be bothered with correct grinding and tamping. You get seemingly good results without craftsmanship.
In a pressurized PF there's usually a plastic or rubber device or a double wall located below the actual filter basket that forces the coffee to pass through small openings, thus generating pressure. That way it creates foamed coffee (bubbles made of air) that has nothing to do with real crema, which is an emulsion of water and aromatic oils that forms tiny bubbles around carbon dioxide released from the coffee beans during extraction when water is pressed through finely ground fresh coffee at around 9 bar and the right temperature. Since extraction has already taken place when pressure develops in a pressurized portafilter, no crema can arise. It may look like it, but it certainly doesn't taste like it. It's a fake. You can taste the difference.
*** "This drink of the Satan is so delicious that it would be a shame to leave it to the infidels." (Pope Clement VIII on coffee, when he was urged to ban the beverage)
Symbols: = New Posts since your last visit = No New Posts since last visit = Newest post
Forum Rules: No profanity, illegal acts or personal attacks will be tolerated in these discussion boards. No commercial posting of any nature will be tolerated; only private sales by private individuals, in the "Buy and Sell" forum. No SEO style postings will be tolerated. SEO related posts will result in immediate ban from CoffeeGeek. No cross posting allowed - do not post your topic to more than one forum, nor repost a topic to the same forum. Who Can Read The Forum? Anyone can read posts in these discussion boards. Who Can Post New Topics? Any registered CoffeeGeek member can post new topics. Who Can Post Replies? Any registered CoffeeGeek member can post replies. Can Photos be posted? Anyone can post photos in their new topics or replies. Who can change or delete posts? Any CoffeeGeek member can edit their own posts. Only moderators can delete posts. Probationary Period: If you are a new signup for CoffeeGeek, you cannot promote, endorse, criticise or otherwise post an unsolicited endorsement for any company, product or service in your first five postings.