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Re:Neglected Food Bubbles: The Espresso Coffee Foam by bkkk on Wednesday September 14, 2016 @12:29AM (#12494240)
You sure they are blends for espresso? Italian brands or "american" brands.

Not sure about the authority of this page:

> Most of these Italian blends (Illy is the exception) clearly make effective and imaginative use of coffees of the robusta species

http://www.coffeereview.com/italy-seen-from-america-nine-gen...

Re:Neglected Food Bubbles: The Espresso Coffee Foam by toyg on Wednesday September 14, 2016 @07:42AM (#12495856)
Well, in Italy it's all either for espresso or "moka" (percolator), used more or less interchangeably (with different results of course).

http://www.lavazza.co.uk/uk/at-home/blends/caffe-espresso.ht...

(Lavazza has a number of other "100% arabica", including Qualità Oro that is more or less the golden standard - pun intended).

http://www.segafredo.it/it/a-casa/caffe/moka/emozioni-100-ar...

Illy we already said.

I personally don't wander beyond these three vendors (Segafredo is from my hometown, Lavazza is the most ubiquitous, Illy is the mainstream high-quality choice), but there are likely more. To be fair, there are also a lot of Robusta mixes as you go down, but the "100% arabica" brands is firmly at the high end.