BrianEnos Senior Member Joined: 30 Oct 2013 Posts: 23 Location: AZ Expertise: I love coffee
Posted Fri Feb 7, 2014, 4:37pm Subject: Re: Tamper question...Convex vs. Flat
Machine: Expobar Brewtus IV.
I'm a big fan of the "Espro" tamper (I got from WholeLatteLove). It "breaks away," or clicks, when the pressure reaches 30 pounds.
And with a bottomless portafilter, watching the coffee as it forms on the screen in the bottom of the basket - you can take your packing / tamping troubleshooting skills to a whole new level. Occasionally I'll see the coffee appearing on all the wholes in the basket at the exact same time. That shot is always money.
Posted Fri Feb 7, 2014, 4:55pm Subject: Re: Tamper question...Convex vs. Flat
I use a RB 58mm C-ripple. I like the feel of it, whether or not it makes a significant difference is debatable. I do notice my extraction is very even on a bottomless., and my pucks retain the ripple shape after knock-out.
I cant say the shots taste "sweeter." The advantage is that the c-ripple tamper gives you more room for error. If the tamp isnt perfectly level the extraction is still quite even. I dont know if this is significantly better than a convex, but I do notice its easier to get consistent shots with my c-ripple, than with my flat.
Now, since the shots are more evenly pulled, all other factors aside they should taste great, consistently. Compared to less consistent pulls with a flat tamper, maybe you could argue they do on average taste sweeter... but that would be an issue of human error, and not that the tamper is better a priori.
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