Coffee culture

Why Does Coffee Taste Both Sour and Bitter? Which Coffee Beans Are Neither Sour Nor Bitter - Price of Non-Sour, Non-Bitter Coffee Beans

Published: 2026-01-27 Author: FrontStreet Coffee
Last Updated: 2026/01/27, Professional coffee knowledge exchange, for more coffee bean information, please follow Coffee Workshop (WeChat official account cafe_style) ● Is coffee sour? Coffee beans are derived from coffee fruits, therefore they contain acidic substances. There are two types of coffee sourness: one is the bright and lively aromatic acidity, and the other is the "dead acidity" that is sour but not aromatic. Aromatic acidity tastes like lemon, apple, and citrus-like fresh fragrance, just like juice

For professional coffee knowledge exchange and more coffee bean information, please follow Coffee Workshop (WeChat public account: cafe_style)

● Is Coffee Sour?

Coffee beans are taken from coffee fruits, so they contain acidic substances.

There are two types of coffee sourness: one is the bright and lively "fragrant acidity," and the other is the sour but unfragrant "dead acidity."

Fragrant acidity tastes like the fresh scents of lemon, apple, and citrus, refreshing and pleasant like juice; dead acidity is as difficult to swallow as white vinegar, absolutely unappealing.

All raw coffee beans contain both fragrant and dead acidic components. How to maximize fragrant acidity and minimize dead acidity depends on the roaster's skill; on the other hand, the deeper the roast, the higher the degree of caramelization, the more acidic substances are destroyed, and the less likely there is to be sourness.

● Is Specialty Coffee Bitter?

Many friends say that coffee is very bitter and hard to drink. In fact, it's because most coffee shops "use bitterness to cover flaws," roasting deeply to mask undesirable off-flavors.

The bitterness of coffee mainly depends on:

The nature of raw beans – flavors produced by growing regions and methods

The quality of raw beans – whether there are defective or flawed beans

Roasting – the depth of roast and roasting techniques

Poor quality coffee beans will present undesirable flavors, even off-flavors. The so-called "using bitterness to cover flaws" is actually an attempt to use the bittersweet taste of dark roast to cover poor flavors, but often due to poor roasting, it creates a burnt, bitter, and unpleasant taste.

● Specialty Coffee, As It Should Be.

High-quality coffee beans, combined with roasting techniques, can bring out refreshing and pleasant sweet and sour flavors with light roast; medium roast offers moderate body with balanced sweet, sour, and bitter notes; while dark roast has weaker acidity with rich, mellow, and fragrant flavors.

Some people like the sensation of sweet and sour stimulating their tongue, some prefer balanced sweet and sour flavors, and others enjoy the mellow and refreshing taste.

There is no best flavor, only the flavor you like most.

From today onwards, choose the coffee flavor you like!

● Recommended Non-Bitter Coffee Bean Brands

FrontStreet Coffee's non-bitter roasted coffee beans: Washed Yirgacheffe coffee, Kenya AA coffee, Panama Butterfly coffee, etc., all have full guarantees in terms of brand and quality. More importantly, the cost-performance ratio is extremely high. A half-pound (227 grams) package costs only about 80-90 yuan. Calculated at 15 grams of powder per pour-over coffee, one package can make 15 cups of coffee, with each single-origin coffee costing only about 6 yuan. Compared to coffee shops selling for dozens of yuan per cup, this is extremely cost-effective.

FrontStreet Coffee: A roastery in Guangzhou with a small shop but diverse bean varieties, where you can find various famous and lesser-known beans, while also providing online store services. https://shop104210103.taobao.com

Important Notice :

前街咖啡 FrontStreet Coffee has moved to new addredd:

FrontStreet Coffee Address: 315,Donghua East Road,GuangZhou

Tel:020 38364473

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