Why does every cafe around me have acidic espresso?
It's like an epidemic. I've tried like 4-5 cafes now and it's all like drinking battery acid. Do they just not care? Or do you think they believe it's meant to be like this? If that's the case I feel bad for them.
I’m a roaster. Part of it is that people put so much importance into making coffee with freshly roasted beans. when you roast beans they give off co2. Ideally you want to let the beans sit for a day or 2 to degas. It’s the same reason seltzer water has an acidic taste, it’s full of co2
That's part of it. The other part, however, is more neglect than anything else. They dial in their grinder for the first batch, and that's it. Never again. That's fine for that batch and, sometimes the next, but it starts losing calibration after a while. Add that to the fact that each batch needs to be dialed in for pique flavor, and you get crappy, often times acidic or sour, pulls.