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Compared with caffeine content, Coke is a big dark horse.

Published: 2026-07-14 Author: World Gafei

Last Updated: 2026/07/14, Food Myth (4) (Central News Agency reporter Huang Huimin, Taipei, 21st) what kind of drink is the most refreshing? after comparing the caffeine content of black tea, green tea, regular coffee and espresso, the Food Inspection team of Discovery channel found that the caffeine of one can of aluminum can is equivalent to two cups of regular coffee or six cups of espresso. In addition, it is generally believed that drinking coffee can lead to teeth

Food Myth (4) (Central News Agency reporter Huang Huimin, Taipei, 21st) what kind of drink is the most refreshing? after comparing the caffeine content of black tea, green tea, regular coffee and espresso, the Food Inspection team of Discovery channel found that the caffeine of one can of aluminum can is equivalent to two cups of regular coffee or six cups of espresso.

In addition, it is generally believed that drinking coffee can cause teeth to turn yellow, and experiments have shown that beverages that are more aggressive than coffee can be found everywhere.

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In order to figure out whether tea or coffee has a high caffeine content, Ted, the host of the Food Inspection team, asked the editor-in-chief of popular Science magazine to compare the caffeine content of black tea, green tea and coffee and found that it was also 8 ounces. Green tea has only 30 milligrams of caffeine, 50 milligrams of black tea and 150 milligrams of coffee.

Surprisingly, Coke contains an astonishing amount of caffeine. There is about 300 milligrams of caffeine in a 12-ounce Coke can, and one aluminum can alone has more caffeine than two cups of coffee, six small espresso or 30 chocolate bars, confirming that Coke is the "big dark horse" in the energy drink competition.

Each episode of "Food investigation team" answers the food questions that people often encounter in their daily life. In addition to the energy drink survey, the program also investigates which beverage is the easiest to dye teeth. The production team, led by Dr. Mark Wolff of the School of Dentistry at New York University, broke into the laboratory and soaked the teeth in black tea, coffee, red wine, sports drinks, tomato juice and cola for seven days.

It was found that tomato juice had the least impact, while the second-to-last influence was coffee, which was often misunderstood, and coffee spots could hardly be seen on the surface of the teeth. The acidity in sports drinks slightly erodes the teeth, while the food pigment contained in Coke increases the chances of teeth being heavily stained, giving it the third place in the rankings.

The runner-up was black tea, and the champion of tooth dyeing was red wine, which was often paired with Western-style dinners. the teeth soaked in red wine for seven days almost turned purple. The reason is that the chromoplasma in red wine is so dark that it is easy to cause a mouthful of "purple teeth" after drinking it.

It is worth noting that although spirits do not pose a threat to tooth dyeing, drinking liquor first and then other easily dyed drinks will make the teeth darker than drinking drinks alone. This series of experiments, so that the host Ted can not help exclaiming: "it seems that I have to switch to mineral water!"

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