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How is potato-flavored coffee formed?

Published: 2025-08-21 Author: World Gafei
Last Updated: 2025/08/21, Professional coffee knowledge exchange more coffee bean information Please pay attention to the coffee workshop (Wechat official account cafe_style) unlike ordinary coffee, fine coffee is very much like wine: taste and taste and smell are everything. Potato Potato Taste Defects/PTD is defined as a quality defect / defect. Many people think that the flavor of potato first appeared in the East African country of Rwanda.

Professional coffee knowledge exchange more coffee bean information please follow the coffee workshop (Wechat official account cafe_style)

Unlike ordinary coffee, fine coffee is very much like wine: taste and taste and smell are everything.

Potato Potato Taste Defects/PTD is defined as a quality defect / defect. Many people believe that the potato flavor first appeared in coffee produced in the East African country of Rwanda. This defective taste degrades the quality of coffee and seriously hinders international buyers from buying Rwandan coffee.

马铃薯味道

Potato taste

"it smells moldy and reminds me of old cardboard," University of California, Thomas Miller said. "to me, it tastes like toenail toenails/."

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SCA风味轮

SCA flavor wheel (defective part)

The volatile compounds in potato odor were analyzed by gas chromatography-mass spectrometry (GasChromatography-Mass Spectrometry). The main component analysis of chromatographic data shows that tridecane, dodecane, tetradecane, 3-isopropyl-2-methoxypyrazine (IPMP).

The cause of the flavor of potato

The taste of potato is peculiar to East Africa. It may have something to do with volcanic soil. It may also be the unique complex insect composition here that causes the taste. University of California, entomologist Thomas Miller pointed out: "the potato flavor is related to a local bedbug called antestia (stinkbug). This kind of insect is generally found in the producing areas of coffee with potato flavor. These insects live in mulch under abandoned coffee plantations or banana trees, which can damage coffee production by up to 35%.

马铃薯味道的成因

The dried antestia powder was analyzed by GCMS, and the volatile compounds obtained in the analysis of potato odor were also found. In addition, coffee with obvious insect damage on its surface also showed IPMP in its internal volatiles analysis.

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