Recently, a study published by Foods scientifically proved why black coffee and dark chocolate taste sweet. After drinking black coffee, the sweetness is sweeter and the bitterness is not bitter.
Scientists selected 156 young people to compare their sensitivity to sweet, sour, salty and bitter tastes before and after drinking black coffee. In this study, four flavor substances were dissolved in water and dripped on the subjects' tongues. While asking about their taste, dilute these solutions until the taste is too light to taste. After recording these data, the scientists asked the subjects to drink two cups of black coffee at 35℃~40℃, and repeated the above test again two minutes later.
The results showed that the subjects were more sensitive to sweetness at this time, but became dull to bitterness. The other two flavors, salty and sour, were not affected. The change of taste explains why black coffee and dark chocolate are sweet when mixed together: after drinking black coffee, people are more likely to taste the sweetness of dark chocolate, and at the same time feel less bitter, thus producing sweetness.
Everyone has different sensitivity to taste, but most people like sweetness and hate bitterness. When two flavors coexist, bitterness usually weakens sweetness. For example, quinine can obviously inhibit the sweetness of sucrose. However, the results of this new study show that bitter black coffee is more likely to make people taste sweet. The interaction between tastes is so complicated that scientists slowly find out the mechanism behind it. Let's make use of the research results and enjoy coffee and delicious food first.