Spot check in Taoyuan shows that Japan's MisterDonut has the highest caffeine content.

Many people have the habit of drinking coffee, even several cups a day, but drinking too much leads to too much caffeine. Taoyuan County Health Bureau in order to know the sugar-free and cream-free black coffee sold by Taoyuan county chain Western-style fast food restaurants, convenience stores and coffee shops, the May sampling survey yesterday released a random survey of 32 pieces of black coffee sold in the market, of which "