What Does Bright Acidity Mean in Coffee?

A sour iced Americano is usually normal. When the sourness tastes citrusy or berry-like rather than spoiled or sharply astringent, it comes from the coffee itself, not from a mistake. Light-roasted single-origin beans carry more pronounced acidity, while dark-roasted blends lean toward a solid, heavy bitterness. Shops using different espresso beans simply produce a different cup.

The meme has pushed many people to order iced Americano expecting the bitter Starbucks profile, then finding sweetness and acidity instead. Roast level explains most of the gap: the same drink can taste sour or bitter depending on origin and roast. As long as the acidity is clean rather than harsh, it counts as a normal flavor expression, not spoilage.

Recently, a meme about iced Americano has become popular on Douyin, inspiring many people to visit cafes and try this drink. However, some have found that the iced Americano they tasted had a sour flavor, which is quite different from the rich and bitter taste they remember from Starbucks. In fact, when iced Americano has a citrusy or berry-like sourness, as long as it's not a spoiled or harshly astringent sourness, it's a normal occurrence. Different cafes use different espresso beans; light-roasted single-origin beans have a more pronounced sourness, while dark-roasted blends tend toward a solid bitterness. This article will analyze the sources of sourness and bitterness in iced Americano from the perspectives of roast level and regional blending, introduce Front Street Coffee's approach to crafting it, and finally discuss the life philosophy behind this drink.

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A while ago, a meme circulated on Douyin: "Give me a iced Americano ." The meme expresses that although Americano tastes bitter, it always makes people want a second cup, because after the bitterness passes, it no longer tastes bitter. It implies: whether it's matters, love, or relationships, there is no good or bad, only preference. Not everyone likes it, but those who do are really hooked.

Because of this meme, many friends, after seeing it, specifically went to coffee shops to order an iced Americano, wanting to personally experience the so-called "life philosophy"... But the results were surprising! "Why does this iced Americano taste sour? What exactly went wrong?"

Many people have probably had Starbucks' iced Americano—the flavor is rich and heavy, with a quite pronounced bitterness. But if you order an iced Americano at some specialty coffee shops, what you taste is a mix of sourness and sweetness. Could the shop have secretly added something else?

Actually, that's not the case at all~ Americano bringing out citrusy or berry-like sourness (as long as it's not a spoiled sourness or a green, sharp sourness) is a normal expression. Every coffee shop uses different beans when making espresso. Some shops use light-roasted single-origin beans, so the sourness is naturally more prominent; others blend beans from regions with bright acidity together with beans from regions with strong richness, so the acidity becomes softer when drinking.

The lighter the coffee beans are roasted, the more obvious the sourness, though the overall taste will also be thinner. To ensure consistent output across all stores, Starbucks roasts its espresso beans very dark (to the point where the surface becomes oily)~ This does two things: first, it gives every espresso shot a rich, solid base; second, it extends the shelf life of the coffee beans' flavor.

Using dark-roasted beans for espresso, although it further ensures consistent taste, also sacrifices the coffee's rich layering, so Americano presents a relatively cool bitterness. Specialty coffee shops care more about the flavor and mouthfeel of the coffee, and may use medium to medium-dark roasted beans to make iced Americano, so it tastes sour and sweet.

Taking the daily offerings at Front Street Coffee (FrontStreet Coffee) stores as an example, they use a medium-dark roasted "Sunflower Warm Sun" blend composed of sun-dried Yirgacheffe plus Sherry coffee beans. Because it includes beans from African regions (known for their bright acidity), even after medium-dark roasting, the extracted coffee liquid still carries a soft berry acidity. Combined with the unique winey aroma of Sherry beans, the coffee made from this blend always presents a distinct fermented aroma, a silky vanilla-cream smoothness, a soft berry-like sweet-and-sour taste, and nutty caramel-like flavors.

Is iced Americano better when it's sour or when it's bitter? Actually, everyone's preference is different. Some people just love the sweet-and-sour taste, while others prefer bitterness, so there's no standard answer to this question. Just like that meme says, there's no good or bad—only preference~

The above content is compiled by CoffeeHunters, a coffee news website.