It won't burn your mouth. Because it is concave, the lips can't wrap all of it, and some air will be sucked up with the coffee, so that the sucked coffee will be slow, and the flow of air will reduce its temperature, so that the coffee in the mouth will not be very hot but not very hot, and it can also play the role of a stirring rod. So this tube can be used as a straw or a stirring rod.

For a girl who wears lipstick, in order not to eat lipstick in her mouth, she will drink coffee through a straw. In fact, the use of straw was discovered later, which is a new usage. Small straw, small flow. When drinking hot coffee, it is not easy to burn your mouth, because it has cooled to the right temperature on the way to suck the straw.

Precautions for drinking coffee

Coffee can stimulate the secretion of gastric acid. Drinking after meals can help digestion, but drinking on an empty stomach can easily damage the stomach wall. For example, if you drink a cup of black coffee for breakfast, will you feel a dull pain in your stomach? Although the pain is not very serious, it is easy to suffer from gastritis, gastric ulcer and other diseases after a long time.

Whether milk and sugar are added to coffee or not, drinking coffee will aggravate stomach problems, so patients with gastric ulcer and gastritis should not drink it. If you have indigestion and low gastric acid secretion, you can drink some coffee to help digestion.