I’m relatively new to the espresso game and my espresso always tastes a bit sour… please help! I’m using a Breville Barista Express. From what I understand, the sourness is generally because of under extraction. The water seems to be at around 190-200 degrees, so I don’t think that’s the issue. I’ve tried to dial in the grind size so that pulling a shot takes around 25-30 seconds. At that grind size, the pressure gauge is at the very top of the range. I believe if I go finer with the grind, then it’ll take longer to brew and push the pressure up higher. I’m not sure exactly what to do to address this. Could it be that I’m tamping too hard? I push relatively firm, aiming for about 30 lbs of pressure. Thanks for the help!
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How many grams of espresso are coming out at the other end? The rule of thumb is around 2x the mass of coffee in the portafilter. However, that’s just a rough guide. Generally, more water -> more extraction -> less sour. Just for experimentation’s sake, try adjusting variables like fineness or water, and let the shot time go longer. See how you like the results.
I tried to follow all the rules of espresso. “Only X seconds of brew time”, “Only this Y grams of water”. I never got a good tasting shot. Then I started experimenting. I have a pretty cheap DeLonghi Dedica, and I began to tailor my shots to how my machine actually works, vs how others told me to do it.
Nowadays, I pull a ~43g shot from 18g of coffee. I have my grinder set to some fineness level that I haven’t needed to adjust in months. The shots I pull are always better than most non-specialty coffee shops. Sometimes, I even get a perfect shot that tastes like heaven. It all became better when I stopped focusing on rules and started learning what my machine likes.
Love this comment. I like the mindset of using the rules as general guidelines, but experiment a bit and see the impact.