Sour espresso on Breville Bambino Plus: the limits of light roast

Sometimes I get sour espresso on my Breville Bambino Plus. Sometimes it's because I did a bad job, but what if sometimes it's just a limitation of the roast? Or of the Bambino itself? What do you do if you don't know the difference between "sour" and "acidic"? In this video I explain why light roast coffee might not be your ideal espresso, the limitations of beginner espresso machines for light roast espresso, and how you can try to prevent sour espresso as a whole. Sour espresso resources: Seattle Coffee Gear — Ask Gail: How to fix sour espresso shot    • Ask Gail: How To Fix A Sour Espresso Shot   Lifestyle Lab — How to fix sour espresso    • How to Fix Sour Espresso   James Hoffman — Weird Coffee Science: Hacking sour espresso    • Weird Coffee Science: Hacking Sour Espresso   The Real Sprometheus — Five tips for dialing in a light roast    • Weird Coffee Science: Hacking Sour Espresso