Wednesday, March 30, 2011

Espresso coffee foam

Food Biophys. 2011 Mar 30.

 
  • Elegant review from Illycaffe S.p.A
  • The first author of this article is Ernesto Illy (deceased).
  • Espresso coffee foam, aka crema, comes from
    • CO2 gas generated by roasting
    • microscopic oil droplets (emulsion)
    • coffee cell wall fragments
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