Why Sour Espresso Is a Red Flag for Quality
⏱ 1 min read The Short Version Sour espresso signals a problem, not a flaw—often due to under-extraction or under-roasting, not the coffee itself. Dark roasts can fix it by balancing acidity and enhancing flavor. In This Article The Science of SournessThe Fix Is in the Roast Real talk: Sour espresso isn’t a flaw—it’s a red flag. You’re not alone in hating it. That sharp, tangy note isn’t a natural characteristic of coffee; it’s a clear signal that something is off in your extraction or roast. Sour espresso isn’t a flaw—it’s a red flag that something is off in your…