Hold the Sugar and Pass the Dashi—Coffee is Having a Savory Awakening

From koji-fermented lots to dashi-infused drinks, producers, baristas, and chefs are exploring how coffee can evoke umami, even when it contains little of the compound itself.

BY BHAVI PATEL
BARISTA MAGAZINE ONLINE

Featured photo by Çaglar Oskay

Coffee professionals can spend hours discussing acidity, sweetness, and bitterness, but another flavor dimension, umami, has been increasingly gaining attention. Savory, rounded, and sometimes reminiscent of broth, it was once dismissed by many cuppers as a flaw. That view is beginning to change.

Baristas are adding dashi to cold drip coffee, chefs are simmering gravy with black coffee, and coffee producers are experimenting with the same mold used to make miso. The question is simple: If coffee contains very little of the compound most closely associated with umami, why does it sometimes taste savory? The answer stretches from coffee farms to kitchen stovetops.

What does umami taste like in coffee?

Green coffee contains so little free glutamate that taste receptors cannot register umami directly. According to neuroscientist Fabiana Carvalho, the impression of umami in coffee is largely a sensory illusion created through retronasal smell. Roasting reduces total amino acids by roughly 30 percent, making direct umami even less likely.

For many years, Western cupping traditions categorized savory characteristics as defects. Not everyone agrees with that approach.  This crucially reflects a cultural bias, not a sensory fact. In Taiwan, localized coffee flavor wheels even include roasted minced pork sauce as a tasting descriptor, for instance. Savory notes do not automatically signal quality or the lack of it. 

Adding umami to coffee with koji, dashi, and miso

Fermentation offers one path toward a more savory cup. Koji mold produces amino acids and glutamates, and blind cuppings conducted across four countries rated a koji-processed Red Bourbon higher than a conventional natural lot. The process, however, depends heavily on timing. When koji was applied directly to green beans, drinkers generally disliked the resulting umami character. Applying the spores to whole coffee cherries produced much better results.

Chefs have explored different approaches. At Hide Izaki‘s Tokyo project Cokuun, dashi made from seaweed, bonito, tomato, and mushrooms is used to deepen flavor complexity. One beverage paired mushroom dashi with cold drip coffee, peach, fig leaf, sansho pepper, and eggplant. Miso maple lattes presented at Coffee Fest Los Angeles received mixed reviews, though many attendees enjoyed them.

Cooking with coffee

Coffee and savory cooking have been companions for a long time, especially in the American South. Red-eye gravy combines black coffee with country ham drippings, and a recipe preserved by the James Beard Foundation requires only two minutes of simmering in the skillet.

The earliest documented use of the name appears in a 1931 Milam Cafeterias advertisement in San Antonio, a much later origin than the frequently repeated story involving Andrew Jackson suggests.

Coffee does not create umami by itself. Instead, it enhances ingredients that are already rich in glutamates. Its bitter acidity also helps cut through richness and fat, making dishes such as coffee-cocoa chicken mole and coffee-braised short ribs logical pairings.

Umami is unlikely to take center stage on coffee flavor wheels anytime soon, but interest in savory coffee continues to grow. As co-fermentation techniques and koji processing develop, producers may offer more savory-leaning lots to roasters. Consumers who already appreciate fermented foods could prove especially receptive. For baristas, that opens the door to more distinctive signature drinks and a broader language for describing flavor. For home cooks, the experiment is much simpler. Brew a strong cup, warm a skillet, and see where the flavors lead. Coffee has always worked well at the table, and the fifth taste seems increasingly comfortable joining it.

ABOUT THE AUTHOR

Bhavi Patel is a food writer focusing on coffee and tea, and a brand-building specialist with a background in dairy technology and an interest in culinary history and sensory perception of food.

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