Better Coffee Q&A
Community
Hi Lorna.
Better pourover
Hey Roy.
Bitter French Press
Hey Luke.
Full City Moka
Hey Darlene.
Blade Grinding
Hey Anthony.
Upgrades
Hey Jeff.
Sour Espresso
Hi Taylor. Sounds like you’re already a pretty sound coffee aficionado. But let me see if I can help.
Espresso is tricky. Everything has to be just so, as you probably know. The sourness you’re talking about could be from a number of things. The first thing you should check on is your brewing temp. The water should probably be around 201ºF. Not sure if you have a machine that is adjustable like that. If not, I’d suggest preheating the portafilter - run some water through it like you’re pulling a shot and get it nice and hot, then dry it and make your puck. Don’t let the portafilter sit out of the grouphead for long or it will cool down and make the extraction turn a bit sour.
The other thing that might be problematic is if your shots are extracting too quickly. You said it is extracting properly based on time (and volume I assume), but I’d suggest coarsening the grind a tad, settle the coffee in the portafilter basket as it’s filling, and temp the heck out of it. In my experience, that will produce the sweetest shot. Should yield 2 ounces in around 25 seconds.
There’s a lot of debate about how much coffee you should use in a double espresso, but we use 20-21 grams. Because we’re heavy hitters. For a little variety (instead of that Lavazza stuff), you might try a single origin espresso.